Dad was an electronics technician in various fields, including NASA. When I was a kid I'd pluck every tube from a derelict TV, had no idea what they were or how to power them up to get that magical glow, I just thought they were cool. Now some 50 years later I'm in my 26th year with NASA as a senior metrologist, but my hobbies revolve around vacuum tube-powered gear. Amateur radio with transcievers from the late 1950s, restoring pre and postwar tube-powered Zeniths (and a few `50s TransOceanics), and music which of course would be old Fenders and Marshalls, all of which require their own particular families of vacuum tubes. My favorite times are on cold, winter nights listening to the airwaves from another continent, glass of bourbon and nothing but the heat, smell and the deep orange glow of an entire group of tubes in a Collins transmitter and reciever.
Oooh, NICE, the Collins 'line' of individual components also great! For my station, along with a modern transceiver, I have the Kenwood line. This would be the complete matching set with the 830-S flagship at the heart of the system. De KC1JZR (if you want to take a look).
@@garysmith8455 Hey Gary, that's a nice Yaesu too! I'm on QRZ as well. I have a Collins S-Line (the receiver is a 75S-2), a solid state Icom IC-736 (which I love) and the newer 7300, so I have one of each "generation", vacuum tube, SS and SDR. I'm low budget in that I have no tower, all my antennas are home-built. I use the trees on my property to string up a G5RV (which many dispise) way up at 80 feet. That, and a few hundred watts gets me just about anywhere I want to go. 73
@@SteverRob Thanks so much Rob! Ok on your gear too! Yes, only a dublette here as well, but not slung over branches, actual Halyards, and a 20lb. weight on the movable end with backing plates and hooks in the tree trunks LOL. Since THREE trees are involved, there can be lots of motion. But the wire stays in place no matter the weather. I will look you up on QRZ! I run the Maine Potato Net Thursday - Saturday evenings on 3.961.000 We NCS's run 'Net Logger'. There are two other NCS stations, we run 7 nights a week. Come log in and become a SPUD (O: 6pm. eastern at the moment until the time change.
Old enough to remember going to Walgreens with my dad… to use the ol’ tube-tester. Had to..to fix the RCA console TV. Couldn’t miss that week’s “Man From UNCLE” episode…
I beg to differ on a several points. As for “tube life”, for many years now I have owned, used and maintained several tube amplifiers, and all the amp repair techs I’ve talked to or used say basically the same thing, life of a tube can be 2 minutes to 20 years. 2nd.. New current production vacuum tube market is quite vast, (that is until current political sanctions on Russia have blocked shipments). Power tubes are the only tubes required to be matched in pairs, and are also biased as pairs. An amplifier that would have (8) power tubes would have (4) pairs of matched tubes and require biasing. Preamp tubes do not require matching or biasing. Handling tubes with your fingers, power or preamp, will not harm the tube in any way (other than an unsightly fingerprint, or you could get burned if hot). DON’T “JERK” the tubes out of their sockets!! Gently rock them in a circular motion while pulling upward… same when inserting them. If you don’t feel confident, ask a Tech/Repairman to get the best information.
@@Valleyplant You don't need to wait 20 min for them to totally warm up to listen. Tubes only need about 20-30 seconds of warm up to actually be able to listen. It just takes about 20-30 min for the tubes to be completely saturated to get the best listening experience from them. Hope this helps.
Tube rolling is utter nonsense and is akin to religion. If any, there maybe a difference in gain between different tubes of the same type (which is just as easily dialed out with a gain control), but tubes do not affect the frequency response. Please prove me wrong with other evidence than 'but muh ears'. 😊
Those tube are 6550 tung-sol if they are black plate no hole with 3 D getters two on one side one on top they can bring 750.00 each tube. I’m lucky I have a matched pair dated 3225904= 322 tung-sol, 59 Year, 04 4th month. Man do they sound out of this world.
Leslie speakers rock! I bet they are the best speaker made! They can handle a very large frequency spectrum more efficiently than any other speaker in my opinion. They are like a Timex....They take a licking and keep on ticking! If I could, I would find a way to implement a pair of Leslie speakers in my home connected to my audio rig. It wouldn't be anything short of AMAZING, but I would need a very large area to accommodate such an adventure. It would be very impractical unless you lived in a castle. I like how Jon Lord among a few others implemented the B3 in Rock, and the Blues. I wander if the B3 Hammond has upgradable Op-amps? But anyway, my favorite organ is the Hammond B3.
I just bought a tube preamp. I have always owned AB, or D amps but grew up hearing tubes and have always been interested in the back of my mind. I decided the best way to introduce them to my system would be a preamp, get a taste and see how I like it. Currently I use my DAC as a preamp, it's great, very clean sound. It has several filter settings and a parabolic EQ, but the sound is pretty neutral across the board. I would like the ability to change the tone, especially for certain recordings and types of music. My tastes range across the music spectrum and I have fun with experimenting. Seems like the next logical step in my systems evolution.
Great to get a video about tubes. One thing I would like to mention. I would not recommend that anyone rock the tubes as severely as you demonstrated in inserting or removing tubes. You will surely break a pin. As for gear I have a PrimaLuna Dialogue Premium HP integrated. I rolled the stock EL34s out in favor of KT150s. Wow. It made the unit a totally new unit. Of course the tubes ARE the amp. I have a couple of other tube units too.
There should be no problem handling tubes with bare hands, they are not like halogen bulbs. Tubes don't necessary have a life of only a few years, they can last fer decades. I'm restoring (mainly recapping) a radio from 1956 that still has a complete set of original operational tubes.
Vintage tubes made in the West from the 1970s or earlier tend to last much longer than the current Russian and Chinese crap. 1-2 years is not at all realistic, even the Russian and Chinese stuff lasts much longer unless it's really being hammered hard in the circuit. I find that it's the rectifiers that lose their sonic performance much sooner than the signal tubes.
Indeed, I have a Fairbanks & Morse 1937 AM/SW radio using all original tubes, I myself have recapped and the set operates beautifully. That's 82 years and going strong still.
@@balthromaw6305 I have a friend who went to retrieve a system from the estate of an elderly person who had died. The system had been installed in the 1960s, and was basically untouched since then. While most of the system was accessible, the amp was nowhere to be found. They followed the wires, and eventually found that there was a pair of McIntosh MC40 mono amps that had been built into the wall, sealed in behind the sheetrock. They had been fully powered for over 40 years, and were still working perfectly.
I run 2 styles of amplifier 6EM7 preamps with 300B power valves and EC83 with KT88 power tubes. Both hand built with the best components collected over the years. Once you have heard them you will never go back. I had a friend visit recently and he brought some of his favourite discs. He discovered all kinds of details in his music he never heard in 30 years of listening. Go single ended triode over ultra linear. I can tell you that my 300B amp at 9 watts is louder than transistor amps supposedly rated at over 100 watts. The only side effect from all this goodness is that music that has been recorded badly will show up and end up in the bin. There is a good reason western electric 300B NOS valves are selling for over $5000- US a pair. They are the best. PSvane is a great brand of Chinese valves that you didn't mention. Highly recommend, especially the more expensive models
Great video. For me it couldn't come at a better time. I just ordered my first tube preamp and your video taught me a lot. Now I have a basic understanding of how to properly use them and what to look for.
Tube rolling is a lot of fun. But also op amp rolling can produce amazing things. With my Lake People G111 Headphone Amp (German manufacturer), I ended up using 3 Burson Audio V6 Vivid Dual Op Amps. Plus the Cambridge Audio Dac Magic 100 with Oyaide USB cable / Oehlbach NF 214 RCA cable and Sennheiser HD 660s / Beyerdynamic DT880 Edition. Quite a good compilation in my opinion.
Thankyou for sharing your experiiences with Valves. I use Valves for instrument ampliification and once had an amp that sounded awful, changed speaker, changed capacitors and even tried modifications to the circuit but it still sounded hard and horrible then one day I just pulled an Ecc83c from a little radio and placed it in the 1st socket of the nasty amp and I could'nt believe the change in tone. 1 valve saved tha amp from being trashed for parts to a " Numero uno" Electric Guitar amp. Yes, I notice after 15/20 mins the tone gets better and smoother . Your viddy ought to be included with every new Valve amp. Keep up the good work.!
Hello from Canada. I’m just starting into my tube life after having solid state all my life. Interesting info. My tube amp is a custom one from Steve White. All the amps he builds are self biasing on every tube for longer life. Can’t wait to understand and roll a few down the line. Great into, thanks!👍❤️🇨🇦
I got a THX amp and just got a Ta-26 (OTL tube amp) and i must say i LOVE the sound. With electronic, rock, classical music, jazz, everything sounds so fun, lively, decongested but also very bassy and tickly to the ears. Great vibes. Love tubes, you gotta try it
Everything I have is "solid state" ! I saw a tube phono pre-amp on Amazon very cheap, but I passed because I didn't know anything about it! Now I do, thx!
Vinyl City Get yourself a decent valve preamp something about 2 to £300 that will improve the sound of your system dramatically I hope this is of some use to you all the best with your journey into the hifi World
Thanks for sharing your video. It is very informative. You are much appreciated. I try purchasing all my audio gear that either focus around tubes, and/or upgradable Op-amps. Discrete Op-amps for example perform much more efficiently, are very very low distortion levels, they can present a more rich and robust audio experience. They are also very expensive. A decent dual Op-amp the NE5532, is made by Texas instruments. This Op-amp is considered an industry standard as a well balanced Op-amp. This Op-amp sells for a very low price. The Sparkos SS3602 Dual Discrete Op Amp sells for around $80. The combination of tube rolling with Op-amp rolling can give you the best listening experience. It does for me. CHEERS!
Thank you very much for the interesting video. For a newb like me using a tube amp or pre-amp sounds intimidating. An introduction to the elements to pay attention to when considering this approach is very valuable. 👍🏽👍🏽
Thanks I have Tube amps and wanted to try some new tubes .Every one I spoke to about it tried to talk me out of it.Why? Anyway I didnt listen and am anxiously awating my new vacuum tubes .So glad I watched this.
Hi AD. Still liking your channel. Very well presented. Point 4: a well made vacuum valve should last 10,000 hrs but if they are switched on/off often then their life will be much shorter. I have a Marantz 240 c1975 with Australian made, Falls Audio, valve pre-amp and valve MM phono pre. The Marantz, like many early SS power amps has a valve like sound (I had a Leak St20 vac valve amp and Stereo preamp) so matches with the preamps very well for a sweet sounding HiFi that still has lots of kick for Black Sabbath. I play my tv using the headphone out thru this system and it even performs well with TH-cam! (Tiny Desk is a great source for new music performed live). Lp’s of course are where it really shines. Music is Life🌈
Tube sound is misunderstood by the unfamiliar. Power is just a part of what is needed to drive a speaker element. The signal from a tube drives speakers much more efficiently in a way that solid state can not do. So every frequency is cleaner, louder, more real sounding. Like real live music. SOOO, you can use tubes for a preamp, generate that efficient signal, and feed it into solid state amps. Bingo. It really works. I do this now with a blutube Rockville amp, 70 watts max. It drives speakers like a 400 watt amp but with better sound. This is no joke people. Never think you can compare tube signal power with solid state power alone. It is the tube signal that pushes the speaker so much more efficiently, making more dynamic, realistic sound. Not warm, not laid back, but intense reaistic sound. Every speaker will sound better with tubes. The better the speaker, the more tubes will improve the sound. And it will be louder... with much less "wattage". For music lovers it is well worth learning about tube preamplification. No need to break the bank on 800 watt SS amps. Read some reviews about Rockville Blutube hybrid amps. New tubers are all amazed how much better their speakers sound with a tube system!
You asked about gear: I have a Jolida JD-1000rc running the panels only of my Martin Logan SL3 (100W per side.) Woofers are being driven by Nak SS. Adding tubes to these speakers was a day and night difference. I had the opportunity to run the SL3 with numerous SS gear (Krell, Classe, Rotel, Nakamichi) and when I added my first tube amp, the speakers just melted away. Being able to tube-roll and "tune" the sound for the speaker and the room has been critical to getting a sound that I love. I was worried about changing to tubes as there is a ton of misinformation out there...I wish I would have done this 30 years ago when I started in Audio. Thanks for the video and keep up the good work.
Great setup! That is a very powerful tube amp, in fact it can drive those not very sensible electrostats with ease I see! Very cool! Thanks for sharing!
I am biased ( but not in the vacuum tube way). My first wife came from Blackburn UK and more than 50 years ago now, every time we drove down the ring road, we passed the Mullard factory there. In the UK,, NOS Mullards and their Phillips equivalents for guitar amplifiers are now and were, the gold standard for tubes, as they are for many in the USA. I have an NOS Mullard EF86 from pre 1970 in my Vox amplifier and it is a great improvement on the JJ I had before. However, depending on which Mullard/ Phillips tube is in demand, some sellers are asking hundreds of pounds sterling for just one, or hundreds of euros. What were once thought of as little more than scrap have become an investment.
Thank you for this video! This was very helpful. I'm getting ready to change the tubes on my Egnater Renegade 212 combo. This will be my first time for changing tubes out and biasing them.
I had the Tjoed CD player years ago and listened every day. I found it needed six minutes to start working properly and at 1 hour the sound opened up to hear all the subtle reverbs in detail. The tubes lasted 2 years. They still worked fine but the sound was getting a little dull. New tunes brought the life back. I rang to manufacture tunes in Australia
I'm a tube only guy..! My riaa is an De Paravicini EAR phonobox, run by 3x 12AX7 and passive SUT gain. (step-up transformer) Not a single transistor or Op-Amp, neither in the gain stage, or in the riaa equalization itself. Then a blue alps pot (again a passive variable resistor) controls the line signal level which is being sent directly to a Primaluna tube Poweramp, again with no transistors or Op-Amps. Pure analogue sound being handled by passive discrete topology, Valves, resistors and SUT's from end to end.
1:07 I believe the earliest working vacuum tubes by Fleming were diodes that replaced the crystal in radios. Later, the triode was invented to amplify radio signals for use with loadspeakers.
Yes, the diode came first, and the triode came later, and it WAS found by accident. Actually, it was found much earlier on when playing with a light bulb and the triode effect was witnessed but was ignored as a useless phenomenon until later when it was realized that it could be used as an amplification device
I really like tube amplifiers but they are harder to service these days and even the modern tube amplifiers are ok but still expensive. The one thing to consider is the amount of electricity a pair of mono block amplifier consumes during use and at the same time never to use them in high humidity and/or overly warm spaces. The sound coming out of any decent pair of tube amplifier is amazingly awesome especially paired with an analog R2R or cassette deck.
Nice thing about tube amplifiers is they are fairly simple. You could probably do most of the work on one yourself. That’s how I got into tube amps. Rebuilt a few. Good soldering iron, patience, documentation, and a multi-meter.
Eckerds Drug store. We had a TeeVee, that was smoking tubes continually. So much so we just left the back off the tv! We’d test the suspect tubes on the machine and they had the replacements in the bottom portion. Walk down memory lane…that Drug store still had an old fashioned soda fountain…look that one up young’uns! 😂
If you know a little about quantum physics, you know that electrons infact are a huge mystery. Just the double slit paradox in itself proves that. Electrons can behave both as a particle, and a wave. Two electrons can affect each other over apparently endless distances, and electrons can disappear from one location, and pop up in another without any time passing in between. The behavior of electrons gave birth to The Super String Theory, which to add up requires the existence of multiple dimensions. This other discoveries also substantiates. These dimensions occupy the same time and space as we do, and electrons can unimpeded pass between them. This is infact what happens when electrons pass through a tube. Despite the short distance we see electrons travel through a tube, they infact pass through an almost endless row of dimensions. An extreme current of electrons are able to pull things along, like it happened during The Philadelphia experiment, where the ship was dragged into hyperspace, but even lower currents can pull things along from other dimensions and into this one. Passing through a tube, to higher dimensions, and back to here, electrons bring back divinity, and this is the very reason that tube gear sounds so divine. If you believe this, I seriously think you need to talk to somekind of therapist, but the divinity of tube sound is a fact that can't be argued, and believing in it doesn't require a straightjacket. Tubes rule!!!! Awesome video mate.
I love your videos because they embody real life advice,as well as, a presentation that is amiable and not pedantic or condescending. But you might wish to consider that there are women who watch your videos too. So the “hey guys” might be something to reconsider.
Great Review I own an Audio Research LS 25. After 8 years, I trusted 4 new tubes might add more dynamics. Audio Research sent me not only unmatched, but different brands. I personally called and complained, their response was I’m old world and there is no need to match them. I replaced the tubes with the originals. Moral of the story, there are few of us left like you and I. We believe good audio is part science and part heart. Audio Research lost their’s by being consumed by larger corporations. Please, keep up your good work! Speak from the brain and with your heart. Thank you. I admire you videos.
If you are looking for a good tube amplifier and never want to worry about bad tubes again see my post to Anadialog about Bob Carver's new tube amplifier with a 50 year life expectancy on the tubes. Hopefully they have international sales.
I had 4 phono stages at the same time to compare in my system the Schiit mani, Cambridge Audio, Rega and a Budgie from Parks Audio. The Budgie was a tube phono preamp the 3 others were solid state. In the end the Parks Audio Budgie made my albums sound the best to me. FYI the Schiit mani put up a good fight. Awesome information sir like always, Thank You!
For my very first foray into tubes (after TRYING to be an Audiophile for 40+ years) I just recently bought a Littlebear T11 all tube phono section, which has 1 rectifier tube and 3 other tubes. This is replacing the sort of dual-mono semi-vintage Discrete Sherwood Newcastle preamps/amps that run each channel of my two tall fully open dipole multi-driver line-arrays, where I've been using the phono sections of those preamps/amps for nearly 20 years. It's burned in now probably over 60+ hours of actual playing, and I THINK I'm going to like the sound. I agree with the fellow here that earlier in the signal path would be the place to try tubes first if possible. So, I'm interested to see how I like the sound. The unit came with stock Chinese 6n2 tubes, but there are switches and you can use 12AX7's instead. I just ordered 3 really inexpensive new matched 12AX7 tubes from Upscale audio, so I'm quite curious as to how they will sound : )
@@anadialog BTW, I didn't really direct a much deserved compliment to you for your excellent reviews and such, thank you! I found your advice on another post from you about interconnects which was bloody PERFECT timing because at that moment I needed one. And, although I have some really ancient ones that were considered very Audiophile at the time, those are in use in my main system, but I needed one for my secondary that was decent but not prohibitive. And BOOM your video about those interconnects which I've never heard about was perfect, so I snagged the entry level one and it's working fine, thank you! I must say, a very nice looking interconnect for that price. I'm sorely tempted to try the high level purple ones on my main system, but I'll have to see about that. Please keep up the most excellent and **VERY** helpful posts mate!
I used to have a small Chinese headphone tube amp, I got hooked! I was looking for a different sound, to revive those nights sitting at my parent's living room, letting my music fill the void with sounds from my dad's turntable. I bought another one, a Dark voice, it's a solid piece of gear that could provide me years of entertainment. The only downside of it, I've spent a lot of money on tubes, experimenting with sounds. Expensive hobby to say the least. (and now I want to spend more on records).
Check out Watford Valves, a British Company specialising in tubes. They have a massive range of stuff, including cryo treated stuff and sell matched pair kits that have been put into audio amp kits.
Great Explanation on tube Matching! I have an 8 channel valve summing box and noticed when I engage the 4th tube (which is different) (channel 7,8) even if audio is not passing at the time. It still adds characteristic to the overall summing signal it can make it better or worst.. might add too much shine… etc. It is always good to match them with the same company. Personally I prefer Mullards Eico 12ax7 ECC’s mid 1960s Vintage. Jimmy Hendrix style! 🙏
Tubes wouldn’t be here today without guitar players. As long as kids keep playing the guitar, tubes will be here to stay. You can thank Eddie Van Halen for that. :)
I do black & white film photography and darkroom printing, which, like valves, is ‘old technology’ but, as many people including myself believe, it is better, in various respects, than today’s more modern digital (‘solid state’) technology. So the old technology can be better. But on the other hand, there is the theory of ‘product diversification’ which says, seemingly correctly, that as time goes by, basic technologies diversify rather than become obsolete. For example, in the beginning we had the simple pencil, and then as time went by we developed the woodless pencil, the propelling pencil, the clutch pencil, the coloured pencil, and various grades of graphite. We also developed the standard and erasable ball point pen, the felt tip pen, the fountain pen, and various other variations of writing implements, now including electronic styli for our iPads - all being different ways to write or draw. So tubes, like vinyl records, will probably always be around. Looking at what’s available today online in the way of tubes, there seems to be a much greater proliferation of them, and at keener prices, than ever before, so hang in there. I’m curious to know (I’m about to buy a valve amp), how do you know when your tubes, or some of them, are worn out? Thanks
Fantastic video and a wealth of information! Have so many friends wanting to begin their tube journey. I believe it’s a new old frontier in our hobby just as vinyl has made a comeback. So happy to see more getting into true hifi
Back in mid 70's in high school my first amp was a Gibson Atlas IV a 6L6 50w amp...I've used solid state amps, many actually, but I went back to tube amps back in 2005 with a Bugera 'plexi' type but it was built too cheaply for me cause I wanted to gig out, so I got a 94 Marshall 1987x pre-FX loop...great amp but then I heard ENGL and it's been ENGL's ever since and back to the great 6L6 tone, Marshall was a EL34
Another great video (I just subbed)! Synergy is also something that comes into consideration when trying to achieve great sound. Sometimes, you get unexpected results, better or worse. Recently, I put together a system that included an inexpensive, but excellent sounding tubed preamp. I went with a Little Dot MK3 head amp/preamp, and rolled a pair of CBS Hytron NOS tubes, circa early 1950's. Amplifer is a McIntosh MC162 solid state, and Magnepan MG12/QR speakers. Even thought these aren't larger KT88 or EL34 tubes, I cannot believe how great they sound! Bottom line: it really does not take a lot of money to get into tubes these days!
I used that Little Dot MkIII as the volume control / preamp for my bedroom HiFi for a while. It sounded surprisingly good, but not as good as a REAL tube preamp - I ended up with a Van Alstine FET Valve CFR. It's an all-tube preamp that uses MOSFET's for only power supply regulation. I own fancier tube preamps, but the VA is outstanding at its price point - no quibbles!
Thanks for the response. I'm still using the same Little Dot MkIII in the same system, but unfortunately, our new addition to the family (a Rottweiler) precludes me from listening to much music these days. You would not believe how one large dog can change your life, and add both joy and stress to a household! The dog lives in our main rec area room where all my equipment is. She is real sweet, but follows me everywhere, and requires a lot of attention, LOL. Anywho, i'm hoping I can upgrade my preamp gear one day soon, and get a larger house with a separate 'listening room'. I have a 'Ham Radio room' currently, but no other available rooms for listening. @@CustomTele52RI
Good episode, thanks! I like your two charts about tube Manufacturing countries. This week I was shopping for a Fender guitar amplifier 5AR4 rectifier tube replacement. It converts AC current into DC current used inside the amplifier circuits. It's for a 2019 re-issue of a 1959 Bassman bass/guitar amplifier that I bought straight from Fender this year, made in November 2019. Not even Fender sells the exact same tube replacement, a Groove Tube!? I felt like I was shopping for old technology that is still only made in obscure locations that still have the manufacturing equipment for this old technology. Kind of fun. Kind of frustrating. I was actually upgrading the amplifier to higher 40 wattage Jensen AlNiCo P10Q speakers, it's a learning curve! It's cramped inside the amplifier cabinet and I couldn't reach a few bolts to remove two speakers. At one point the 5AR4 tube was in my way, so I briefly thought about removing it, but how? I tried twisting it to unscrew it but that did not work. It has two C shape clamps that you have to press down hard as you gently jiggle the glass tube and try to pull it straight up and away. But I guess I managed to lose the vacuum when I was ignorantly trying to twist it, so I ruined that tube, it looks like it got foggy because it was no longer a vacuum inside the glass, I accidentally allowed humid air to enter the tube. A friend at work says tube amps aren't worth it, just use transistors that are cheaper. I think the question is like drinking beer from a bottle or a can, some can tell the difference and some cannot, some care and some do not. I have a $200, 100 watt Fender transistor amp, with supposed digital presets to sound like different classic tube amps, (meh, not quite effective); and it's just not as sentimental and traditional as the $1,500, 45 watt tube amp that I am working on. The tube amp is definitely better sounding and worth the money in my opinion. For some reason the lower wattage tube amplifier seems to be louder than the higher wattage transistor amplifier sounds?! That's another reason I like the tube amps over the transistor amps. Just this weekend I discovered your TH-cam channel, you have a lot of good episodes and topics! You have a lot of good insights.
Thanks for sharing your experience. I am glad to hear that who MAKES music is still a fan of tube sound and yes, you are correct tube amplification does appear to be louder because it has a pleasant distortion and makes the most out of the same wattage in respect to a transistor based system.
mostly agree.You can make a solid state riaa(phono stage or a power amplifier that sound organic.No negative feedback local or global solid state done right get that organic sound(not harsh) without the bad things a tube are known for.And they sound the same at any level until clipping.I only use this type circuits in my build,s.No oscillating problem with them either.Component choice and short symmetric signal path is important.The most silent amps i have heard also.No hizz. I use sensitive drivers 94 to 96db pr watt 1 meter no horn.Amt type tweeters ,planar magnetic mids from 240hz and up in a active setup.Have to put my ear close to the tweeter to hear some faint hizz.Have tried lots off different amplifiers, they all had hizz i could hear easy from my chair.
I switched out my Schiit Mani phono preamp for a Project Tube Box DS. It was my first experience with tubes and even though they're only being inserted in a small preamp section, the difference compared to all solid state was big. The longer I keep spinning, the better the sound gets as the tubes get warmer. Rolling with my amp acts like a tone control as well. Tried a pair of reissue mullards and my vinyl setup sounded like I was using an old NAD amp. The stock Tung Sols are the opposite, more dynamic and forward, though a tad grainy on top. I have a pair of the Gold Lion 12ax7 gold pins coming in, curious to see what it does.
thank you for these precious tips! Question : do valves travel well? Suppose we want to ship a tube amplifier. Is there any danger ? Would you recommend to remove tubes and send them separately? Thank you in advance. Un cordiale saluto. Mauro
Ciao Mauro, yes, they are pretty safe. Actually I think they are more safe inserted in the amp than in separated boxes AS long as you put foam and protection all around them!
Thank you for sharing, very interesting and informative, just uploaded a few of my hand crafted tube Amps. I enjoy learning more about the world of tube Audio!
Some were made on the lathes of Telefunken....BUT not necessary with the same quality chemicals and materials.....some batches were very good some were NOT !
Tubes can sometimes be purchased from the manufacturer of the amplifier. Audio Research has replacement tubes for their products. Upscale Audio in California, USA sells tubes.
Not to criticize, as you speak more languages than I do, but, I think this is important to note; “jerking on a tube” could possibly lead to someone really jerking on the tube, which is a more violent action than “gently rocking the tube as you lift out”. Love your videos and my suggestion again, is in no way meant to criticize.
Here we go : -Tubes were mainly used for Radio transmissions. -Tubes are not the main key in tube sound, the output transformer is in fact mostly affecting the sound. -Headphone amp are not preamp, you need a power tube and an output transformer so, HP amps are amps. -Tube life does not depend on the number of tubes. Power tubes last between 5 to 8 years depending on use. Preamps tubes are lasting at least 20years. -Tubes were not better in the past, they are now much quieter, consistent and trusty. -Tube matching is for power tube but it is not quality, it is performance. -You can touch tubes with your hands but it is better to touch them with gloves. Like any piece of equipments in fact. -Warm up time is more like 1 to 3 minutes max because there is a heater !!! Warm time in transistors amps is much longer in fact, depending on the technologie used.
- I knew someone was going to say something of my Headphone amp suggestion...oh my! Obviously I am talking about the pre-amplification part in the headphone amp, in fact its called amp not pre-amp but did you really had to point that out? wasn't that clear? I guess not. - In certain types of circuits, like that designed by PrimaLuna the number of tubes diminishes the work for each tube, hence increasing their life. Don't believe me. Go and read the info on their site: www.primaluna-usa.com/dialogue-premium-hp-integrated - Guess what? I got a tube amp and after 1 year and a half one of the pre-amplification tubes died...not even close to 20 years! And this happens constantly, Please get real. - I think that the golden era of a specific technology will always produce a better product than posthumous emulations. - Yes, matching is mainly in power tubes and yes performance is paramount, which delivers better sonic results. For the rest I agree more or less...
@@anadialog You don't have the first clue about any of this. A tube that's employed according to its rated specifications will have a very long life. It's not uncommon to find NOS or even used tubes from the 1930s that still work fine. A tube that's not operated within those specs is in a faulty device of a device of faulty design. I can't say your PrimaLuna buddies didn't intentionally build tube-eating machines but I can't imagine any likely reason why they would. (Also, nowhere on that page do they make the claim you do that they have extra amplification stages to increase tube life. You're pulling that one entirely out of your own uneducated ass.)
You’re right, the best tube amps don’t sound warm they are neutral sounding. They give you the precision of a solid state class D amp but they give you added soundstage holographics and a bit of top end sparkle. What is your favorite tube pre-amp? I recently purchased the Kitsume Holo May DAC which you reviewed and I am looking for the best tube pre-amp for it. I have narrowed it down to PrimaLuna EVO 400 and or the Woo Audio WA33 headphone amp which doubles as a pre-amp.
Nice! The Evo is a true preamp, with various inputs while the Woo is mainly a headphone amp. Depends from your needs but if you are also using speakers and getting a power amp obviously you need something like the Primaluna...
@@anadialog Currrently my entire system consists of my NAD T778 AV receiver and my speakers. I recently upgraded my speakers to try to improve my 2 channel performance for stereo listening so I purchased a pair of Spatial Audio X5 open baffle speakers. Those will replace my 25 year old Boston Acoustics tower speakers. Then I caught the audiophile bug and decided to upgrade my headphone listening system so I got an M1 Mac Mini and a Woo Audio WA7 tube headphone amp. I also got a pair of Hifiman Araya headphones to go with that. I then decided to upgrade from my one and done NAD T778 to get an external DAC which is the KTE Holo May. That’s what led me to get a pre-amp and streamer too. And since my NAD receiver is a totally neutral totally transparent sounding amplifier, I wanted to add a little tube holographic and tube sparkle to that sound similar to my WA7 tube headphone amp. So that led me to the PrimaLuna. Also the streamer I am looking at is the Hifi Rose RS-150, which has a really nice large touch screen display and unlike most streamers has the ability to stream videos and music from youtube and project that in 4k on my LGTV. So I thought that would make the perfect pairing for my new Holo May DAC and would complete my new 2 channel system.
@@anadialog As far as the inputs on the pre-amp goes there is only one device I will be plugging into it and that’s the Holo May. So Switching is a non-issue for me. I don’t expect to be buying a turn table or reel to reel or tape player etc...
It's a good thing you are talking about this. I was just thinking about a tube phono preamp. I have been using a Radio Shack solid state one from 1983 and it works fine, but I am curious of how much better a tube one would be.
I have various radios at home but the best 1 is an old 1950's bush valve radio, the sound is really nice but the reception is far better than my other radios.
I have had access to possibly the best of both technologies. The older one is mono. It uses four 6V6s push-pull parallel. But the only info is for a version with two 6L6-GT. No info on matching. We'd often listen two rooms away and it sounded like Horowitz was playing his Grand in our living room. I have another hybrid Germanium with three Nuvistors (an RCA answer to transistors. Three times bigger than a TO-5 case for VHF, UHF low noise) That stereo from late 60s is still running. For tube testers I'd suggest a trans conductance tester. Hickock Electric made some of the best. You could look up a tube's specs and set measurement by that even if the roll chart didn't have the tube on it. DC on the filaments does make a difference.
Hey was wondering could you help me. Looking for a tube for vocals only and these 4 kept poppin up: Just want it to cut through the mix, nice and smooth, with crisp smooth high end no harshness and all round clean. Nothing muddy. I've got a really expensive microphone. SE Gemini II So: Telefunken Mullard Tung Sol RCA Your thoughts?
There's a junkyard by me with a section of vehicles dating back to the 40s and its my primary source of vacuum tubes. And these vacuum tubes have been sitting in this yard for decades but they still work
With the cost of electricity going up astronomically, the amount the equipment costs to run may be a future issue. I had a rather basic class A bias ECC83 X 2 EL84 X 2, 5 watt stereo amplifier and it drew about 80 watt from the mains. The output vs. consumption issue can be improved with class AB bias, but purity is lost with AB. For a couple of KT88s running in class a bias, a second mortgage might need to be taken out: UK electricity prices only, consequent of the evil Net Zero. With single ended class A units, matching is considerably less of an issue since most stereo amps will have a balance control, although I much prefer gain matching between left and right channels. Interesting upload.
A properly biased tube working well within safe limits will last you for years. Also, matched tubes are only needed when you need to use two single triodes in a differential amplifier configuration.
I have a peavey jsx amp and just put in all new tubes...a friend put in sovtek 12ax7wa preamp (x4), and sovtek 6l6wxt+ power tubes (x4). So I will mess around and see what they can do for my sound.
im mainly into tube rf amplifiers i have two..one uses sweep tubes and i hear that they dont last as long as transmitting tubes and the tubes in that amp are getting weak but that amp was made in the mid 70s and the tubes are original..but it still gives 400 watts..the other amp was build in the 50s and uses 3 813 tubes and its still going strong with original tubes putting out 1500 watts with ease..it is capable of 3000 watts if it is wired for 220 volts rather than 110v....iv had other tube sets and in my experience they will outlast any solid state device ..
I own a 1959 stereo Tube pre amp with 1959 nos tubes each channel has a RCA 7025 then each channel has 2-12au7a Sylvania 1 each for bass 1 each for treble. So my tube pre amp has active EQ circuit and is a Cathode follower. a 1959 stereo p/p 6v6gta no volume control that’s on preamp. I run it into Altec Lansing 10 cubic foot cabinets with 15” Alinco magnet, horn mids, high end horns all Alinco magnets. About 15 watts a side will blow your mind. 117 dbl 1 watt at 1 meter. Most realistic music you will ever hear. I own 10 tube amps today some push-pull some Single Ended
![ANA[DIA]LOG](http://yt3.ggpht.com/50CpmGNilS8aoMlarZVhI_GxRDoZdbj4ZgwCMZXg-Rq2PrEvCytlE6RVyLUrNY-rwE_sAlZ1Zw=s48-c-k-c0x00ffffff-no-rj)
Dad was an electronics technician in various fields, including NASA. When I was a kid I'd pluck every tube from a derelict TV, had no idea what they were or how to power them up to get that magical glow, I just thought they were cool. Now some 50 years later I'm in my 26th year with NASA as a senior metrologist, but my hobbies revolve around vacuum tube-powered gear. Amateur radio with transcievers from the late 1950s, restoring pre and postwar tube-powered Zeniths (and a few `50s TransOceanics), and music which of course would be old Fenders and Marshalls, all of which require their own particular families of vacuum tubes. My favorite times are on cold, winter nights listening to the airwaves from another continent, glass of bourbon and nothing but the heat, smell and the deep orange glow of an entire group of tubes in a Collins transmitter and reciever.
How cool, thanks for sharing that!
Oooh, NICE, the Collins 'line' of individual components also great! For my station, along with a modern transceiver, I have the Kenwood line. This would be the complete matching set with the 830-S flagship at the heart of the system.
De KC1JZR (if you want to take a look).
@@garysmith8455 Hey Gary, that's a nice Yaesu too! I'm on QRZ as well. I have a Collins S-Line (the receiver is a 75S-2), a solid state Icom IC-736 (which I love) and the newer 7300, so I have one of each "generation", vacuum tube, SS and SDR. I'm low budget in that I have no tower, all my antennas are home-built. I use the trees on my property to string up a G5RV (which many dispise) way up at 80 feet. That, and a few hundred watts gets me just about anywhere I want to go. 73
@@SteverRob Thanks so much Rob! Ok on your gear too! Yes, only a dublette here as well, but not slung over branches, actual Halyards, and a 20lb. weight on the movable end with backing plates and hooks in the tree trunks LOL. Since THREE trees are involved, there can be lots of motion.
But the wire stays in place no matter the weather. I will look you up on QRZ! I run the Maine Potato Net Thursday - Saturday evenings on 3.961.000 We NCS's run 'Net Logger'. There are two other NCS stations, we run 7 nights a week. Come log in and become a SPUD (O: 6pm. eastern at the moment until the time change.
@@garysmith8455 A 20lb weight! I guess you need that and you’re right, when those trees get swaying, it’s a bit nerve racking.
Old enough to remember going to Walgreens with my dad… to use the ol’ tube-tester. Had to..to fix the RCA console TV. Couldn’t miss that week’s “Man From UNCLE” episode…
I beg to differ on a several points. As for “tube life”, for many years now I have owned, used and maintained several tube amplifiers, and all the amp repair techs I’ve talked to or used say basically the same thing, life of a tube can be 2 minutes to 20 years. 2nd.. New current production vacuum tube market is quite vast, (that is until current political sanctions on Russia have blocked shipments). Power tubes are the only tubes required to be matched in pairs, and are also biased as pairs. An amplifier that would have (8) power tubes would have (4) pairs of matched tubes and require biasing. Preamp tubes do not require matching or biasing. Handling tubes with your fingers, power or preamp, will not harm the tube in any way (other than an unsightly fingerprint, or you could get burned if hot). DON’T “JERK” the tubes out of their sockets!! Gently rock them in a circular motion while pulling upward… same when inserting them. If you don’t feel confident, ask a Tech/Repairman to get the best information.
Tubes are actually my rabbit hole. Tun-Sol, Mullard and Sylvania are so good, love their sound. Tube rolling is pure audio joy. Great video Guido
I prefer Gold Lion.
How long do you usually let them heat up before listening?
@@Valleyplant You don't need to wait 20 min for them to totally warm up to listen. Tubes only need about 20-30 seconds of warm up to actually be able to listen. It just takes about 20-30 min for the tubes to be completely saturated to get the best listening experience from them. Hope this helps.
@@dungysphincter7974 yes this is how tubes work
Tube rolling is utter nonsense and is akin to religion. If any, there maybe a difference in gain between different tubes of the same type (which is just as easily dialed out with a gain control), but tubes do not affect the frequency response. Please prove me wrong with other evidence than 'but muh ears'. 😊
I have Leslie speakers for my Hammond organs and both utilize tubes. Learning to repair/restore my Leslie is what got me into tubes.
Those tube are 6550 tung-sol if they are black plate no hole with 3 D getters two on one side one on top they can bring 750.00 each tube. I’m lucky I have a matched pair dated 3225904= 322 tung-sol, 59 Year, 04 4th month. Man do they sound out of this world.
Leslie speakers rock! I bet they are the best speaker made! They can handle a very large frequency spectrum more efficiently than any other speaker in my opinion. They are like a Timex....They take a licking and keep on ticking! If I could, I would find a way to implement a pair of Leslie speakers in my home connected to my audio rig. It wouldn't be anything short of AMAZING, but I would need a very large area to accommodate such an adventure. It would be very impractical unless you lived in a castle. I like how Jon Lord among a few others implemented the B3 in Rock, and the Blues. I wander if the B3 Hammond has upgradable Op-amps? But anyway, my favorite organ is the Hammond B3.
Tubes rule! They are just so sweet in the highs and mids even at low volume. 👍👍
I just bought a tube preamp. I have always owned AB, or D amps but grew up hearing tubes and have always been interested in the back of my mind. I decided the best way to introduce them to my system would be a preamp, get a taste and see how I like it. Currently I use my DAC as a preamp, it's great, very clean sound. It has several filter settings and a parabolic EQ, but the sound is pretty neutral across the board. I would like the ability to change the tone, especially for certain recordings and types of music. My tastes range across the music spectrum and I have fun with experimenting. Seems like the next logical step in my systems evolution.
Good job!
Great to get a video about tubes. One thing I would like to mention. I would not recommend that anyone rock the tubes as severely as you demonstrated in inserting or removing tubes. You will surely break a pin. As for gear I have a PrimaLuna Dialogue Premium HP integrated. I rolled the stock EL34s out in favor of KT150s. Wow. It made the unit a totally new unit. Of course the tubes ARE the amp. I have a couple of other tube units too.
Fantastic information, thanks for putting this out there.
There should be no problem handling tubes with bare hands, they are not like halogen bulbs.
Tubes don't necessary have a life of only a few years, they can last fer decades. I'm restoring (mainly recapping) a radio from 1956 that still has a complete set of original operational tubes.
Its all relative, I guess. I know about other examples and experienced the opposite...
Vintage tubes made in the West from the 1970s or earlier tend to last much longer than the current Russian and Chinese crap. 1-2 years is not at all realistic, even the Russian and Chinese stuff lasts much longer unless it's really being hammered hard in the circuit. I find that it's the rectifiers that lose their sonic performance much sooner than the signal tubes.
Indeed, I have a Fairbanks & Morse 1937 AM/SW radio using all original tubes, I myself have recapped and the set operates beautifully. That's 82 years and going strong still.
@@balthromaw6305 I have a friend who went to retrieve a system from the estate of an elderly person who had died. The system had been installed in the 1960s, and was basically untouched since then. While most of the system was accessible, the amp was nowhere to be found. They followed the wires, and eventually found that there was a pair of McIntosh MC40 mono amps that had been built into the wall, sealed in behind the sheetrock. They had been fully powered for over 40 years, and were still working perfectly.
@@gotham61 Sweet those amps are awesome
Tubes are amazing, I have a German radio from the 1950s with 5 tubes in it, and it sounds amazing! I just hope tubes will never go away!
Tubes are like mousetraps, Hershey chocolate, they will always be around😁I hope🙄
Tubes are used more and more these days
@@XtianApi cause they are amazing! They sound a lot better than transistors.
Make the tubes made in russia go away
An old 5 tube radio sounds like a tin box compared to a proper Hi-Fi tube amp.
I run 2 styles of amplifier 6EM7 preamps with 300B power valves and EC83 with KT88 power tubes. Both hand built with the best components collected over the years. Once you have heard them you will never go back. I had a friend visit recently and he brought some of his favourite discs. He discovered all kinds of details in his music he never heard in 30 years of listening. Go single ended triode over ultra linear. I can tell you that my 300B amp at 9 watts is louder than transistor amps supposedly rated at over 100 watts. The only side effect from all this goodness is that music that has been recorded badly will show up and end up in the bin. There is a good reason western electric 300B NOS valves are selling for over $5000- US a pair. They are the best. PSvane is a great brand of Chinese valves that you didn't mention. Highly recommend, especially the more expensive models
I hear ya!
Great video. For me it couldn't come at a better time. I just ordered my first tube preamp and your video taught me a lot. Now I have a basic understanding of how to properly use them and what to look for.
Tube rolling is a lot of fun. But also op amp rolling can produce amazing things. With my Lake People G111 Headphone Amp (German manufacturer), I ended up using 3 Burson Audio V6 Vivid Dual Op Amps. Plus the Cambridge Audio Dac Magic 100 with Oyaide USB cable / Oehlbach NF 214 RCA cable and Sennheiser HD 660s / Beyerdynamic DT880 Edition. Quite a good compilation in my opinion.
Thankyou for sharing your experiiences with Valves. I use Valves for instrument ampliification and once had an amp that sounded awful, changed speaker, changed capacitors and even tried modifications to the circuit but it still sounded hard and horrible then one day I just pulled an Ecc83c from a little radio and placed it in the 1st socket of the nasty amp and I could'nt believe the change in tone. 1 valve saved tha amp from being trashed for parts to a " Numero uno" Electric Guitar amp. Yes, I notice after 15/20 mins the tone gets better and smoother . Your viddy ought to be included with every new Valve amp. Keep up the good work.!
Great tubes introduction for beginners!
Hello from Canada. I’m just starting into my tube life after having solid state all my life.
Interesting info. My tube amp is a custom one from Steve White. All the amps he builds are self biasing on every tube for longer life. Can’t wait to understand and roll a few down the line. Great into, thanks!👍❤️🇨🇦
I got a THX amp and just got a Ta-26 (OTL tube amp) and i must say i LOVE the sound. With electronic, rock, classical music, jazz, everything sounds so fun, lively, decongested but also very bassy and tickly to the ears. Great vibes. Love tubes, you gotta try it
Nice!!
You're knowledge and description of tube,valve tubes is amazing 👏 😊❤🎉
8 power tubes!!! wow- you hi fi guys never cease....
Everything I have is "solid state" ! I saw a tube phono pre-amp on Amazon very cheap, but I passed because I didn't know anything about it! Now I do, thx!
Thank you! Don't fall for those...I don't mean you need to spend big money on it but not even cheap. Vintage is always a good way as others have said!
Vinyl City Get yourself a decent valve preamp something about 2 to £300 that will improve the sound of your system dramatically I hope this is of some use to you all the best with your journey into the hifi World
Thanks for sharing your video. It is very informative. You are much appreciated. I try purchasing all my audio gear that either focus around tubes, and/or upgradable Op-amps. Discrete Op-amps for example perform much more efficiently, are very very low distortion levels, they can present a more rich and robust audio experience. They are also very expensive. A decent dual Op-amp the NE5532, is made by Texas instruments. This Op-amp is considered an industry standard as a well balanced Op-amp. This Op-amp sells for a very low price. The Sparkos SS3602 Dual Discrete Op Amp sells for around $80. The combination of tube rolling with Op-amp rolling can give you the best listening experience. It does for me. CHEERS!
Thank you very much for the interesting video. For a newb like me using a tube amp or pre-amp sounds intimidating. An introduction to the elements to pay attention to when considering this approach is very valuable. 👍🏽👍🏽
For me the best ever explanation of tubes. Thanks a lot.
Thank YOU!
Excellent video! I'm fairly new to tubes, so these basics definitely helped.
Thanks I have Tube amps and wanted to try some new tubes .Every one I spoke to about it tried to talk me out of it.Why? Anyway I didnt listen and am anxiously awating my new vacuum tubes .So glad I watched this.
Hi AD. Still liking your channel. Very well presented. Point 4: a well made vacuum valve should last 10,000 hrs but if they are switched on/off often then their life will be much shorter.
I have a Marantz 240 c1975 with Australian made, Falls Audio, valve pre-amp and valve MM phono pre. The Marantz, like many early SS power amps has a valve like sound (I had a Leak St20 vac valve amp and Stereo preamp) so matches with the preamps very well for a sweet sounding HiFi that still has lots of kick for Black Sabbath. I play my tv using the headphone out thru this system and it even performs well with TH-cam! (Tiny Desk is a great source for new music performed live). Lp’s of course are where it really shines.
Music is Life🌈
Wow Leak! Good stuff. Thanks for your nice comment!
Tube sound is misunderstood by the unfamiliar. Power is just a part of what is needed to drive a speaker element. The signal from a tube drives speakers much more efficiently in a way that solid state can not do. So every frequency is cleaner, louder, more real sounding. Like real live music. SOOO, you can use tubes for a preamp, generate that efficient signal, and feed it into solid state amps. Bingo. It really works. I do this now with a blutube Rockville amp, 70 watts max. It drives speakers like a 400 watt amp but with better sound. This is no joke people. Never think you can compare tube signal power with solid state power alone. It is the tube signal that pushes the speaker so much more efficiently, making more dynamic, realistic sound. Not warm, not laid back, but intense reaistic sound. Every speaker will sound better with tubes. The better the speaker, the more tubes will improve the sound. And it will be louder... with much less "wattage". For music lovers it is well worth learning about tube preamplification. No need to break the bank on 800 watt SS amps. Read some reviews about Rockville Blutube hybrid amps. New tubers are all amazed how much better their speakers sound with a tube system!
Good points!
You asked about gear: I have a Jolida JD-1000rc running the panels only of my Martin Logan SL3 (100W per side.) Woofers are being driven by Nak SS. Adding tubes to these speakers was a day and night difference. I had the opportunity to run the SL3 with numerous SS gear (Krell, Classe, Rotel, Nakamichi) and when I added my first tube amp, the speakers just melted away. Being able to tube-roll and "tune" the sound for the speaker and the room has been critical to getting a sound that I love. I was worried about changing to tubes as there is a ton of misinformation out there...I wish I would have done this 30 years ago when I started in Audio. Thanks for the video and keep up the good work.
Great setup! That is a very powerful tube amp, in fact it can drive those not very sensible electrostats with ease I see! Very cool! Thanks for sharing!
This was very helpful. Thank you! Trying to ensure that my families 1967 stereo console operates safely. Looking forward to your videos.
I am biased ( but not in the vacuum tube way). My first wife came from Blackburn UK and more than 50 years ago now, every time we drove down the ring road, we passed the Mullard factory there. In the UK,, NOS Mullards and their Phillips equivalents for guitar amplifiers are now and were, the gold standard for tubes, as they are for many in the USA. I have an NOS Mullard EF86 from pre 1970 in my Vox amplifier and it is a great improvement on the JJ I had before. However, depending on which Mullard/ Phillips tube is in demand, some sellers are asking hundreds of pounds sterling for just one, or hundreds of euros. What were once thought of as little more than scrap have become an investment.
Thank you for this video! This was very helpful. I'm getting ready to change the tubes on my Egnater Renegade 212 combo.
This will be my first time for changing tubes out and biasing them.
I had the Tjoed CD player years ago and listened every day. I found it needed six minutes to start working properly and at 1 hour the sound opened up to hear all the subtle reverbs in detail. The tubes lasted 2 years. They still worked fine but the sound was getting a little dull. New tunes brought the life back. I rang to manufacture tunes in Australia
I'm a tube only guy..!
My riaa is an De Paravicini EAR phonobox, run by 3x 12AX7 and passive SUT gain. (step-up transformer)
Not a single transistor or Op-Amp, neither in the gain stage, or in the riaa equalization itself.
Then a blue alps pot (again a passive variable resistor) controls the line signal level which is being sent directly to a Primaluna tube Poweramp, again with no transistors or Op-Amps.
Pure analogue sound being handled by passive discrete topology, Valves, resistors and SUT's from end to end.
1:07 I believe the earliest working vacuum tubes by Fleming were diodes that replaced the crystal in radios. Later, the triode was invented to amplify radio signals for use with loadspeakers.
Even the invention of the triode was by accident 🤔🙄🤗
Yes, the diode came first, and the triode came later, and it WAS found by accident. Actually, it was found much earlier on when playing with a light bulb and the triode effect was witnessed but was ignored as a useless phenomenon until later when it was realized that it could be used as an amplification device
My Hammond organ is an all tuve instrument and also the Leslie spiker too, it sounds beautiful .
I really like tube amplifiers but they are harder to service these days and even the modern tube amplifiers are ok but still expensive. The one thing to consider is the amount of electricity a pair of mono block amplifier consumes during use and at the same time never to use them in high humidity and/or overly warm spaces. The sound coming out of any decent pair of tube amplifier is amazingly awesome especially paired with an analog R2R or cassette deck.
Nice thing about tube amplifiers is they are fairly simple. You could probably do most of the work on one yourself.
That’s how I got into tube amps. Rebuilt a few. Good soldering iron, patience, documentation, and a multi-meter.
Tube noob here, great video, thank you for helping me understand the world of tubes 👍
Great video for a beginner like myself who had 0 knowledge of tubes and how they work. Thanks Brother👍🏾
Now you have negative knowledge. Congratulations? :p
You're old if you can remember when drug stores had vacuum tube testing machines and stocked the tubes.
Yup, I’m 56 and remember walking into the hardware store and seeing those machines that looked like pinball machines.
oh god... that sounds like one old ass person remembering the world war 1 lmfao
Yep plug your tube into a big machine yep
Eckerds Drug store. We had a TeeVee, that was smoking tubes continually. So much so we just left the back off the tv! We’d test the suspect tubes on the machine and they had the replacements in the bottom portion. Walk down memory lane…that Drug store still had an old fashioned soda fountain…look that one up young’uns! 😂
If you know a little about quantum physics, you know that electrons infact are a huge mystery. Just the double slit paradox in itself proves that. Electrons can behave both as a particle, and a wave. Two electrons can affect each other over apparently endless distances, and electrons can disappear from one location, and pop up in another without any time passing in between. The behavior of electrons gave birth to The Super String Theory, which to add up requires the existence of multiple dimensions. This other discoveries also substantiates. These dimensions occupy the same time and space as we do, and electrons can unimpeded pass between them. This is infact what happens when electrons pass through a tube. Despite the short distance we see electrons travel through a tube, they infact pass through an almost endless row of dimensions. An extreme current of electrons are able to pull things along, like it happened during The Philadelphia experiment, where the ship was dragged into hyperspace, but even lower currents can pull things along from other dimensions and into this one. Passing through a tube, to higher dimensions, and back to here, electrons bring back divinity, and this is the very reason that tube gear sounds so divine. If you believe this, I seriously think you need to talk to somekind of therapist, but the divinity of tube sound is a fact that can't be argued, and believing in it doesn't require a straightjacket. Tubes rule!!!!
Awesome video mate.
Facinating! Thanks man! ;-)
I love your videos because they embody real life advice,as well as, a presentation that is amiable and not pedantic or condescending.
But you might wish to consider that there are women who watch your videos too. So the “hey guys” might be something to reconsider.
Whats wrong with using guys even if majority viewers are women?
Great Review
I own an Audio Research LS 25. After 8 years, I trusted 4 new tubes might add more dynamics. Audio Research sent me not only unmatched, but different brands. I personally called and complained, their response was I’m old world and there is no need to match them. I replaced the tubes with the originals. Moral of the story, there are few of us left like you and I. We believe good audio is part science and part heart. Audio Research lost their’s by being consumed by larger corporations. Please, keep up your good work! Speak from the brain and with your heart. Thank you. I admire you videos.
Thank you Harvey!
If you are looking for a good tube amplifier and never want to worry about bad tubes again see my post to Anadialog about Bob Carver's new tube amplifier with a 50 year life expectancy on the tubes. Hopefully they have international sales.
Very useful stuff , 100% agree , I love tube too , thank so much for sharing .
Yes, more on valves please. I'm using valve amplification from your part of the world.
Love this channel ! Thanks for all the videos , Appricate all your hard work and dedication !
Thank you so much!!
Amazing.. i love tubes.... Watching from Brazil...
Welcome aboard!
Yep, spent many hours sitting in the garage warmed by Tram, Bowning, Palamar, and Health Kit tubes.
You covered all the important things I wanted to know, thank you!..
Thank YOU!
I had 4 phono stages at the same time to compare in my system the Schiit mani, Cambridge Audio, Rega and a Budgie from Parks Audio. The Budgie was a tube phono preamp the 3 others were solid state. In the end the Parks Audio Budgie made my albums sound the best to me. FYI the Schiit mani put up a good fight. Awesome information sir like always, Thank You!
For my very first foray into tubes (after TRYING to be an Audiophile for 40+ years) I just recently bought a Littlebear T11 all tube phono section, which has 1 rectifier tube and 3 other tubes. This is replacing the sort of dual-mono semi-vintage Discrete Sherwood Newcastle preamps/amps that run each channel of my two tall fully open dipole multi-driver line-arrays, where I've been using the phono sections of those preamps/amps for nearly 20 years. It's burned in now probably over 60+ hours of actual playing, and I THINK I'm going to like the sound. I agree with the fellow here that earlier in the signal path would be the place to try tubes first if possible. So, I'm interested to see how I like the sound. The unit came with stock Chinese 6n2 tubes, but there are switches and you can use 12AX7's instead. I just ordered 3 really inexpensive new matched 12AX7 tubes from Upscale audio, so I'm quite curious as to how they will sound : )
Nice!
@@anadialog BTW, I didn't really direct a much deserved compliment to you for your excellent reviews and such, thank you! I found your advice on another post from you about interconnects which was bloody PERFECT timing because at that moment I needed one. And, although I have some really ancient ones that were considered very Audiophile at the time, those are in use in my main system, but I needed one for my secondary that was decent but not prohibitive. And BOOM your video about those interconnects which I've never heard about was perfect, so I snagged the entry level one and it's working fine, thank you! I must say, a very nice looking interconnect for that price. I'm sorely tempted to try the high level purple ones on my main system, but I'll have to see about that.
Please keep up the most excellent and **VERY** helpful posts mate!
How cool! Thanks for sharing that!
I used to have a small Chinese headphone tube amp, I got hooked! I was looking for a different sound, to revive those nights sitting at my parent's living room, letting my music fill the void with sounds from my dad's turntable. I bought another one, a Dark voice, it's a solid piece of gear that could provide me years of entertainment. The only downside of it, I've spent a lot of money on tubes, experimenting with sounds. Expensive hobby to say the least. (and now I want to spend more on records).
It's the analog itch!
I dated a girl who's uncle had literally THOUSANDS of tubes in his basement.
@@elonmust7470 ...until they finally mysteriously appeared in your basement.
@@outofvideos I wish I had... That house was sold & all of it's contents thrown away or auctioned.
@@elonmust7470 How did you let that happen without breaking in? ;) What a terrible situation you have to live with. ;)
Thanks for the video. Until now I'm still using tubes for repairing radio and TV.
Check out Watford Valves, a British Company specialising in tubes. They have a massive range of stuff, including cryo treated stuff and sell matched pair kits that have been put into audio amp kits.
Cool!
Great Explanation on tube Matching! I have an 8 channel valve summing box and noticed when I engage the 4th tube (which is different) (channel 7,8) even if audio is not passing at the time. It still adds characteristic to the overall summing signal it can make it better or worst.. might add too much shine… etc. It is always good to match them with the same company. Personally I prefer Mullards Eico 12ax7 ECC’s mid 1960s Vintage. Jimmy Hendrix style! 🙏
I just hope they never go away.
Tubes wouldn’t be here today without guitar players. As long as kids keep playing the guitar, tubes will be here to stay. You can thank Eddie Van Halen for that. :)
I do black & white film photography and darkroom printing, which, like valves, is ‘old technology’ but, as many people including myself believe, it is better, in various respects, than today’s more modern digital (‘solid state’) technology. So the old technology can be better. But on the other hand, there is the theory of ‘product diversification’ which says, seemingly correctly, that as time goes by, basic technologies diversify rather than become obsolete. For example, in the beginning we had the simple pencil, and then as time went by we developed the woodless pencil, the propelling pencil, the clutch pencil, the coloured pencil, and various grades of graphite. We also developed the standard and erasable ball point pen, the felt tip pen, the fountain pen, and various other variations of writing implements, now including electronic styli for our iPads - all being different ways to write or draw. So tubes, like vinyl records, will probably always be around. Looking at what’s available today online in the way of tubes, there seems to be a much greater proliferation of them, and at keener prices, than ever before, so hang in there. I’m curious to know (I’m about to buy a valve amp), how do you know when your tubes, or some of them, are worn out? Thanks
They won't. Guitar amps are a big business and people like myself ain't moving to solid state any time soon.
Fantastic video and a wealth of information! Have so many friends wanting to begin their tube journey. I believe it’s a new old frontier in our hobby just as vinyl has made a comeback. So happy to see more getting into true hifi
Vinyl never went away only the consumers..lol
@@michaelvaladez6570Not true. Vinyl left the room when the kids and CDs showed up.
Back in mid 70's in high school my first amp was a Gibson Atlas IV a 6L6 50w amp...I've used solid state amps, many actually, but I went back to tube amps back in 2005 with a Bugera 'plexi' type but it was built too cheaply for me cause I wanted to gig out, so I got a 94 Marshall 1987x pre-FX loop...great amp but then I heard ENGL and it's been ENGL's ever since and back to the great 6L6 tone, Marshall was a EL34
Cool!
Another great video (I just subbed)! Synergy is also something that comes into consideration when trying to achieve great sound. Sometimes, you get unexpected results, better or worse. Recently, I put together a system that included an inexpensive, but excellent sounding tubed preamp. I went with a Little Dot MK3 head amp/preamp, and rolled a pair of CBS Hytron NOS tubes, circa early 1950's. Amplifer is a McIntosh MC162 solid state, and Magnepan MG12/QR speakers. Even thought these aren't larger KT88 or EL34 tubes, I cannot believe how great they sound! Bottom line: it really does not take a lot of money to get into tubes these days!
I agree! Your synergy concept is absolutely a further point to introduce!
Psvane art series gives direct 👌
I used that Little Dot MkIII as the volume control / preamp for my bedroom HiFi for a while. It sounded surprisingly good, but not as good as a REAL tube preamp - I ended up with a Van Alstine FET Valve CFR. It's an all-tube preamp that uses MOSFET's for only power supply regulation. I own fancier tube preamps, but the VA is outstanding at its price point - no quibbles!
Thanks for the response. I'm still using the same Little Dot MkIII in the same system, but unfortunately, our new addition to the family (a Rottweiler) precludes me from listening to much music these days. You would not believe how one large dog can change your life, and add both joy and stress to a household! The dog lives in our main rec area room where all my equipment is. She is real sweet, but follows me everywhere, and requires a lot of attention, LOL. Anywho, i'm hoping I can upgrade my preamp gear one day soon, and get a larger house with a separate 'listening room'. I have a 'Ham Radio room' currently, but no other available rooms for listening. @@CustomTele52RI
Good episode, thanks! I like your two charts about tube Manufacturing countries. This week I was shopping for a Fender guitar amplifier 5AR4 rectifier tube replacement. It converts AC current into DC current used inside the amplifier circuits. It's for a 2019 re-issue of a 1959 Bassman bass/guitar amplifier that I bought straight from Fender this year, made in November 2019. Not even Fender sells the exact same tube replacement, a Groove Tube!? I felt like I was shopping for old technology that is still only made in obscure locations that still have the manufacturing equipment for this old technology. Kind of fun. Kind of frustrating. I was actually upgrading the amplifier to higher 40 wattage Jensen AlNiCo P10Q speakers, it's a learning curve! It's cramped inside the amplifier cabinet and I couldn't reach a few bolts to remove two speakers. At one point the 5AR4 tube was in my way, so I briefly thought about removing it, but how? I tried twisting it to unscrew it but that did not work. It has two C shape clamps that you have to press down hard as you gently jiggle the glass tube and try to pull it straight up and away. But I guess I managed to lose the vacuum when I was ignorantly trying to twist it, so I ruined that tube, it looks like it got foggy because it was no longer a vacuum inside the glass, I accidentally allowed humid air to enter the tube. A friend at work says tube amps aren't worth it, just use transistors that are cheaper. I think the question is like drinking beer from a bottle or a can, some can tell the difference and some cannot, some care and some do not. I have a $200, 100 watt Fender transistor amp, with supposed digital presets to sound like different classic tube amps, (meh, not quite effective); and it's just not as sentimental and traditional as the $1,500, 45 watt tube amp that I am working on. The tube amp is definitely better sounding and worth the money in my opinion. For some reason the lower wattage tube amplifier seems to be louder than the higher wattage transistor amplifier sounds?! That's another reason I like the tube amps over the transistor amps. Just this weekend I discovered your TH-cam channel, you have a lot of good episodes and topics! You have a lot of good insights.
Thanks for sharing your experience. I am glad to hear that who MAKES music is still a fan of tube sound and yes, you are correct tube amplification does appear to be louder because it has a pleasant distortion and makes the most out of the same wattage in respect to a transistor based system.
I have a lot of vintage tube rectifiers still in the boxes
I have a lot of vintage amps
I love them
You want vintage tubes in America call or write Brent Jesse
Don't forget about the Hungarian Tungsram tubes. Excellent ones.
mostly agree.You can make a solid state riaa(phono stage or a power amplifier that sound organic.No negative feedback local or global solid state done right get that organic sound(not harsh) without the bad things a tube are known for.And they sound the same at any level until clipping.I only use this type circuits in my build,s.No oscillating problem with them either.Component choice and short symmetric signal path is important.The most silent amps i have heard also.No hizz. I use sensitive drivers 94 to 96db pr watt 1 meter no horn.Amt type tweeters ,planar magnetic mids from 240hz and up in a active setup.Have to put my ear close to the tweeter to hear some faint hizz.Have tried lots off different amplifiers, they all had hizz i could hear easy from my chair.
I switched out my Schiit Mani phono preamp for a Project Tube Box DS. It was my first experience with tubes and even though they're only being inserted in a small preamp section, the difference compared to all solid state was big. The longer I keep spinning, the better the sound gets as the tubes get warmer. Rolling with my amp acts like a tone control as well. Tried a pair of reissue mullards and my vinyl setup sounded like I was using an old NAD amp. The stock Tung Sols are the opposite, more dynamic and forward, though a tad grainy on top. I have a pair of the Gold Lion 12ax7 gold pins coming in, curious to see what it does.
Cool! Thanks for sharing!
Thank you! This video was an awesome resource on the topic for someone just learning about tubes.
Thank YOU!
thank you for these precious tips!
Question : do valves travel well? Suppose we want to ship a tube amplifier. Is there any danger ? Would you recommend to remove tubes and send them separately?
Thank you in advance.
Un cordiale saluto.
Mauro
Ciao Mauro, yes, they are pretty safe. Actually I think they are more safe inserted in the amp than in separated boxes AS long as you put foam and protection all around them!
Thank you for sharing, very interesting and informative, just uploaded a few of my hand crafted tube Amps. I enjoy learning more about the world of tube Audio!
I’m italian and you forgot the italian brand FIVRE, they have maded the best 2A3 ever made. Good video guy
I always liked the Yugo tubes, if you can find NOS.
Some were made on the lathes of Telefunken....BUT not necessary with the same quality chemicals and materials.....some batches were very good some were NOT !
Tubes can sometimes be purchased from the manufacturer of the amplifier. Audio Research has replacement tubes for their products. Upscale Audio in California, USA sells tubes.
thanks for the video im new to tubes just bought my felix audio elise cant wait to start tube rolling .
Thank you!
Tube rolling ..there is s start for tube rolling ....BUT THERE'S NO END TO IT !
Thanks for sharing this great knowledge, you speak very clearly. I could understand everything (I´m from México).
Not to criticize, as you speak more languages than I do, but, I think this is important to note; “jerking on a tube” could possibly lead to someone really jerking on the tube, which is a more violent action than “gently rocking the tube as you lift out”. Love your videos and my suggestion again, is in no way meant to criticize.
Here we go :
-Tubes were mainly used for Radio transmissions.
-Tubes are not the main key in tube sound, the output transformer is in fact mostly affecting the sound.
-Headphone amp are not preamp, you need a power tube and an output transformer so, HP amps are amps.
-Tube life does not depend on the number of tubes. Power tubes last between 5 to 8 years depending on use.
Preamps tubes are lasting at least 20years.
-Tubes were not better in the past, they are now much quieter, consistent and trusty.
-Tube matching is for power tube but it is not quality, it is performance.
-You can touch tubes with your hands but it is better to touch them with gloves.
Like any piece of equipments in fact.
-Warm up time is more like 1 to 3 minutes max because there is a heater !!!
Warm time in transistors amps is much longer in fact, depending on the technologie used.
- I knew someone was going to say something of my Headphone amp suggestion...oh my! Obviously I am talking about the pre-amplification part in the headphone amp, in fact its called amp not pre-amp but did you really had to point that out? wasn't that clear? I guess not.
- In certain types of circuits, like that designed by PrimaLuna the number of tubes diminishes the work for each tube, hence increasing their life. Don't believe me. Go and read the info on their site: www.primaluna-usa.com/dialogue-premium-hp-integrated
- Guess what? I got a tube amp and after 1 year and a half one of the pre-amplification tubes died...not even close to 20 years! And this happens constantly, Please get real.
- I think that the golden era of a specific technology will always produce a better product than posthumous emulations.
- Yes, matching is mainly in power tubes and yes performance is paramount, which delivers better sonic results.
For the rest I agree more or less...
@@anadialog You don't have the first clue about any of this. A tube that's employed according to its rated specifications will have a very long life. It's not uncommon to find NOS or even used tubes from the 1930s that still work fine. A tube that's not operated within those specs is in a faulty device of a device of faulty design. I can't say your PrimaLuna buddies didn't intentionally build tube-eating machines but I can't imagine any likely reason why they would. (Also, nowhere on that page do they make the claim you do that they have extra amplification stages to increase tube life. You're pulling that one entirely out of your own uneducated ass.)
This was very informative. Thanks.
If you want to locate NOS tubes, start asking the old folks who did TV and radio repairs post war. Some of them will have a building full of tubes.
Very true
Thermionic valve is the name given by the inventor in Lancashire , England.
You’re right, the best tube amps don’t sound warm they are neutral sounding. They give you the precision of a solid state class D amp but they give you added soundstage holographics and a bit of top end sparkle. What is your favorite tube pre-amp? I recently purchased the Kitsume Holo May DAC which you reviewed and I am looking for the best tube pre-amp for it. I have narrowed it down to PrimaLuna EVO 400 and or the Woo Audio WA33 headphone amp which doubles as a pre-amp.
Nice! The Evo is a true preamp, with various inputs while the Woo is mainly a headphone amp. Depends from your needs but if you are also using speakers and getting a power amp obviously you need something like the Primaluna...
@@anadialog Currrently my entire system consists of my NAD T778 AV receiver and my speakers. I recently upgraded my speakers to try to improve my 2 channel performance for stereo listening so I purchased a pair of Spatial Audio X5 open baffle speakers. Those will replace my 25 year old Boston Acoustics tower speakers. Then I caught the audiophile bug and decided to upgrade my headphone listening system so I got an M1 Mac Mini and a Woo Audio WA7 tube headphone amp. I also got a pair of Hifiman Araya headphones to go with that. I then decided to upgrade from my one and done NAD T778 to get an external DAC which is the KTE Holo May. That’s what led me to get a pre-amp and streamer too. And since my NAD receiver is a totally neutral totally transparent sounding amplifier, I wanted to add a little tube holographic and tube sparkle to that sound similar to my WA7 tube headphone amp. So that led me to the PrimaLuna. Also the streamer I am looking at is the Hifi Rose RS-150, which has a really nice large touch screen display and unlike most streamers has the ability to stream videos and music from youtube and project that in 4k on my LGTV. So I thought that would make the perfect pairing for my new Holo May DAC and would complete my new 2 channel system.
@@anadialog As far as the inputs on the pre-amp goes there is only one device I will be plugging into it and that’s the Holo May. So Switching is a non-issue for me. I don’t expect to be buying a turn table or reel to reel or tape player etc...
Sweet!!!
Currently using Woo Audio WA7 Fireflies paired with the Focal Utopia is just incredible! Thanks for the informative video.
It's a good thing you are talking about this. I was just thinking about a tube phono preamp. I have been using a Radio Shack solid state one from 1983 and it works fine, but I am curious of how much better a tube one would be.
Go for it and give us some feedback!
I have various radios at home but the best 1 is an old 1950's bush valve radio, the sound is really nice but the reception is far better than my other radios.
EXCELLENT VIDEO !
I have had access to possibly the best of both technologies. The older one is mono. It uses four 6V6s push-pull parallel. But the only info is for a version with two 6L6-GT. No info on matching. We'd often listen two rooms away and it sounded like Horowitz was playing his Grand in our living room. I have another hybrid Germanium with three Nuvistors (an RCA answer to transistors. Three times bigger than a TO-5 case for VHF, UHF low noise) That stereo from late 60s is still running. For tube testers I'd suggest a trans conductance tester. Hickock Electric made some of the best. You could look up a tube's specs and set measurement by that even if the roll chart didn't have the tube on it. DC on the filaments does make a difference.
I love this "natural reproduction of sound" idea. great talk!
whats natural about an electronic speaker?
Hey was wondering could you help me. Looking for a tube for vocals only and these 4 kept poppin up:
Just want it to cut through the mix, nice and smooth, with crisp smooth high end no harshness and all round clean. Nothing muddy.
I've got a really expensive microphone. SE Gemini II
So:
Telefunken
Mullard
Tung Sol
RCA
Your thoughts?
Can't go wrong with the first two! THE tubes.
@@anadialog appreciate that 🙏🏾 man! Couldn't find any Telefunkens, so mullards it is!
There's a junkyard by me with a section of vehicles dating back to the 40s and its my primary source of vacuum tubes. And these vacuum tubes have been sitting in this yard for decades but they still work
With the cost of electricity going up astronomically, the amount the equipment costs to run may be a future issue. I had a rather basic class A bias ECC83 X 2 EL84 X 2, 5 watt stereo amplifier and it drew about 80 watt from the mains. The output vs. consumption issue can be improved with class AB bias, but purity is lost with AB. For a couple of KT88s running in class a bias, a second mortgage might need to be taken out: UK electricity prices only, consequent of the evil Net Zero. With single ended class A units, matching is considerably less of an issue since most stereo amps will have a balance control, although I much prefer gain matching between left and right channels. Interesting upload.
NOS tube sets for 12ax7 preamps :
1.vintage vibes: v1: 1956 mullard mc1 longplates v2: 1958 mullard f91 longplates v3: 1959 mullard f92
2.blue marlin: v1: 1958 mullard longplates f91 7025 v2 mullard i61 1959-1964 v3 1964-1975 mullard i63
3. green marlin v1: 1964 mullard yellow print i62 v2 mullard i63 v3 mullard i63 /power tubes mullard xf2
4. ultimate warmth : v1: 1960's brimar 6057 yellow t v2 brimar 6057 v3 brimar cv4004/xf1
5.studio :v1 1960's mullard 10m goldpins v2 1959-1964 mullard i61 v3 i63
6.striped marlin: v1 i61 v2 i62 v3 i63
7.SWEET CLARITY: GE 12AX7WA v1 v2 v3
8.rusty: rca 7025/12ax7a v1 v2 v3
A little distortion/overdrive/gain in the 12ax7 preamp tubes adds a lot of good harmonic content to sound.
The famous ampeg base amp B-15 , 12ax7 ........first and always revered
@@jd2plus2 the peg svt and the 8x10 cab is legindary. To this day
Played b-15 and original svt.....those were the days , and my back is still ok from the cabs 👍
@@jd2plus2 like moving furniture,, lol,, the handle and wheels are life savers
A properly biased tube working well within safe limits will last you for years. Also, matched tubes are only needed when you need to use two single triodes in a differential amplifier configuration.
YEAP !
Yep. (Did he say *anything* that was actually correct in this video? I don't think so.)
I have a peavey jsx amp and just put in all new tubes...a friend put in sovtek 12ax7wa preamp (x4), and sovtek 6l6wxt+ power tubes (x4). So I will mess around and see what they can do for my sound.
Thanks for this informative video.
Thank YOU!
im mainly into tube rf amplifiers i have two..one uses sweep tubes and i hear that they dont last as long as transmitting tubes and the tubes in that amp are getting weak but that amp was made in the mid 70s and the tubes are original..but it still gives 400 watts..the other amp was build in the 50s and uses 3 813 tubes and its still going strong with original tubes putting out 1500 watts with ease..it is capable of 3000 watts if it is wired for 220 volts rather than 110v....iv had other tube sets and in my experience they will outlast any solid state device ..
That can happen, but it isn't common. Especially with new equipment. Cool vintage setup!
dude awesome. Thank you for uploading this stuff.
hi sir thankyou for your beautiful shows.
I own a 1959 stereo Tube pre amp with 1959 nos tubes each channel has a RCA 7025 then each channel has 2-12au7a Sylvania 1 each for bass 1 each for treble. So my tube pre amp has active EQ circuit and is a Cathode follower.
a 1959 stereo p/p 6v6gta no volume control that’s on preamp. I run it into Altec Lansing 10 cubic foot cabinets with 15” Alinco magnet, horn mids, high end horns all Alinco magnets. About 15 watts a side will blow your mind. 117 dbl 1 watt at 1 meter. Most realistic music you will
ever hear.
I own 10 tube amps today some push-pull some Single Ended
Sweet! So which amp worked best for you?
What Phono preamp tube type you're using or reference in this video? Thanks
During that video I think I was using a Manley Chinook.
Wonderful info
Hello; What type of tubes radio or television uses.............
Ótimo vídeo congratulações
Beautiful intro
Great video