I know this is a older video but just wanted to clear up the whole mica thing. Mica is naturally occurring. It is a shiny silicate mineral with a layered structure, found as minute scales in granite and other rocks. The spacers in tubes are made of mica because it is a excellent insulator and can handle high temperatures very well. At one time Coleman used it for the globes on their lanterns.
Ive been using 6p3s in place of 6L6 and 6V6 on some of my lower powered amps. Most of the lower powered amps im using dont push the tubes very hard to begin with so there was no bias adjustment needed. But if you have a bigger amp and it really pushes those power tubes, you A) need to adjust the bias cooler or B) look at a different type of tube. But there are so many options out there. I stopped using 6L6 and 6V6 tubes awhile ago and i dont miss the high prices at all. Ive also been using 6p14p which are EL84 style tubes and 6n2p preamp tubes which are like a 12ax7. These tubes are well made NOS military tubes for peanuts. Cant beat em.
I dropped the 6P6S tube on the 6P43P-E tube and the 6P43P-E crashed Я уронил трубку 6П6С на трубку 6П43П-Е и 6П43П-Е разбилась Разбор радиолампы 6П43П Е. Устройство радиолампы. Analysis of the 6P43P E radio tube . The device of the radio tube. th-cam.com/video/EgvgtUvbb1U/w-d-xo.html
Постелите ковёр, чтобы трубки не разбивались о пол. Lay a carpet so that the tubes do not break on the floor. Трубки храните внизу, чтобы они не могли упасть и накрывайте их сверху, чтобы на них ни чего не упало. Keep the tubes at the bottom so that they cannot fall and cover them from above so that nothing falls on them.
I'm late to the party lol! The mica thing was driving me crazy, here in Asheville North Carolina mica is laying in the dirt all around here I've been told it's a crystal similar to quartz but only an atom thick which is why it seems to be laminated
Growing up in upstate SC, I would always find mica laying around in the woods. It seems like Everyone knew what it was in my area, but I don't blame The Guitologist for not knowing. It might not be very abundant in his location. Also, to the Guitologist: I Love your videos dude! They're extremely inspiring and I've been binge watching them for weeks now haha.
6v6 sub for 6k6, 6l6 sub for 6f6 makes for better sound and a bit more gain. bias points are same. 6f6 and 6l6 are not drop in replacement for 6k6 -6v6 unless the filament supply can handle the current increase.
Nice video! I'm also a fan of tube archaeology, digging deep into the books for substitutes. I've used 6K6s and 6F6s for 6V6s with good results. I second checking the filament current draw particularly, as in some cases it's the equivalent of adding another output tube (or more) to the string. It's one thing to burn up a tube, it's another to burn up a winding on a power transformer.
+Mutt Amps Most vintage guitar amps are over engineered on the parts. The transformers of yesteryear will probably be more forgiving in general than some of the newer stuff. I'd say if it's a Fender or equivalent vintage amp and the transformer is from a well known company, you're probably ok. Also, modern Fender replacement parts will probably be fine. The transformer in this amp in the video is a Fender Champ replacement from Antique Electronic Supply. It held up nicely with all the tubes I tried.
Agreed about the old iron, most times it takes the additional current draw in stride. And yes, point taken about multiple tubes; two 6F6 = three 6V6 and change on filament current. I do a lot of my subbing on amps I've built out of old TV transformers that are used to running 20+ tubes in a set. Lots of filament juice to spare in a guitar amp.
I love obscure tubes! I'm currently designing and building an amp with two 25L6s in push-pull. I love that there are cheap, NOS tubes in someone else's trash that you can turn into treasure. I think it's more fun to design an amp around an obscure tube than to build a clone of the same designs using the standard tubes all guitar amps use. If you're talking about 6V6 replacements I think the Russian 6П6С (6P6S) deserves a mention. So do 6V6-like tubes with other bases and filament voltages like the 7C5, 6BW6 and 12V6. No good for tube rolling maybe, but if you're into designing well worth a look.
+sa230e As long as we're talking other bases, must mention the 7-pin 6AQ5. 6V6 equivalent and great tube! Cheap NOS. I have a tone of them. It would be a interesting experiment to see if I could make some conversion bases for making 6V6 amps run 6AQ5. I agree. Fender clones and Marshall clones are kinda done to death. I prefer trying something unusual too. Thanks for the comment!
+The Guitologist The base of that 6V6 you just broke might come in handy for that. You could strip out the internals, get a 7 pin socket and solder it up to the correct pins and fill it with epoxy to make it nice and solid. BTW, I really enjoy your videos. Thanks for making them.
@@TheGuitologist I dropped the 6P6S tube on the 6P43P-E tube and the 6P43P-E crashed Я уронил трубку 6П6С на трубку 6П43П-Е и 6П43П-Е разбилась Разбор радиолампы 6П43П Е. Устройство радиолампы. Analysis of the 6P43P E radio tube . The device of the radio tube. th-cam.com/video/EgvgtUvbb1U/w-d-xo.html
Just a quick note to say the 6v6 is not a pentode with '3' grids, it is a 'beam tetrode', those two silver C - shaped pieces that got ignored are the beam forming plates.
You are correct. I misspoke on the "3 grids" comment. I added a note on that and a link to an actual diagram in the description. I appreciate the comments immensely. I'm not trying to spread misinformation in my videos, but sometimes in the process of speaking off the cuff, mistakes get made.
The Guitologist Haha, yes, sorry if I came across as a 'knowitall' - horrible! I love your videos and have only just discovered them. Anyhow hello from a new subscriber. I will try and make future comments less smart arsed ))
The Guitologist PS the construction of the 6V6 is very similar to the early triodes which have such a great reputation for audio quality. A 6V6 triode connected should operate like a regular triode, more so than a pentode - take one of those apart and see the difference. The 6V6 connected as a triode sounds silky smooth. Though it has little power that way, maybe 3watts? for a single.
Hi Craig Here in the UK we had the British Valve (tube) association so very different valve numbers ECC83/ 82 El84 KT66 Kt88. I have a valve data book dated 1949 it has some American Valves, after WW2 we had a lot of American radio sets here. I also have a an Italian book with schematics for radios between 1932 and
Great video Brad! I have quite a few 6V6 amps. NOS everything else is easy to come by. I've even considered converting to 6AQ5. I have fistfuls of them.
6V6 and 6AQ5 are identical except for the socket. You can buy adapters so you don't have to molest your amplifier. I thought about getting 6BQ5 adapters for my dynaco power amplifier because the stereo 35 is hard to find. Some adapters have circuit.change built into the socket. No rewiring required. 73
Thanks Brad, Now I'm on the hunt for a couple of 6F6 's Is there a possibility of a video on the 6L6 family? I'm particularly fond of the National Union 6L6GA Black Plate when I can get them at a decent price.
It has that Black Crowes Twice As Hard thang going on.......way kool! I appreciate your desire to pull out of any given amp and guitar the tones it has to surrender. That is where my head is at with amps and guitars. I have friends that are long time players that miss new "Tone" events in their arsenal because they can't find their "one" tone, they just pass it by.. It just kills me when they miss opportunities to add to their spectrum. I want to own all the tones From Pete Anderson, to George Benson or Warren Haines ect..., sorry I didnt' mean to blow up. Keep up the great work!!!!
Why not just buy 6aq5 adaptors there is no circuit change. You can buy the 6BQ5 adaptors but you run into bais issues the 6aq5 is the equivalent of a 6V6 tube. 6BQ5 are more expensive than the 5aq5 also. Like I said before I am considering getting the 6BQ5 adaptors for the 6CA7 or EL34. For my stereo 70 by dynaco. I don't need all that power for a room amplifier. The st35 is hard to find which use el84 6BQ5 tubes. 73
@@joesimon2018 yeah but that's where the adapters come into play they reduce the plate voltage. That's my conversion. A 6V6 and a 6aq5 should be identical. I will look both up.ok the adapters change the plate voltage. I would not change just the socket. Look up 6V6 to 6AQ5 conversion and buy that adapter. In my case I have to look for a 6CA7 to 6BG5 el84 adapters. 73
Thats cool there was a mica mind close to where I grew up they hit water & it flooded the quarry. The water glittered like gold never knew they used for tubes & electronics.
That's in Franklin Co near the home of Ty Cobb. Maybe I'll drive out there & get some footage. Not sure if they have it opened or gated , we would go there & some would jump off the cliff like 600 ft down into the water someone put up a cable w/a stop & a pulley w/a set of handle bars w/rope attached to pull it back to the edge that was to hold on to so you could clear the trees growing out of the side of the quarry you would have to scale the cliff face no way out straight down & up a few trees growing out here & there, crazy days back then.
Hey Man, love your videos! You might want to look into buying a 1957 ARRL handbook! The Tube reference section is A+! Seen a few on Ebay in the $20 dollar range!!
I wonder what swapping the tubes on a 2x10 Gibson hawk would do... I know the 12' version came with 6v6's. could probably get more bottom end with either 6v6's or 6l6's
Ive always wondered could you run the really Small bottled 5881 in place of 2 - 6v6's or do they draw more current and will it hurt the amp? Thanks for any help!!
how come there's no mention of the 7408 tube???? it was used widely in stereo integrated tube amps, it's a direct replacement, and can handle more wattage. They are awesome!!
Hi Brad, don't try to make sense of the American system of classifying valves - it doesn't always make sense. Take the 12SH7 for example, it's a Pentode, 12V filament, five active elements including the heater. Compare this to the 6V6 - 6V filament , five active elements including heater. With due respect to the American system, it's not the best. Fortunately the Net has a lot of help in finding valve characteristics. My favourite system belongs to Philips-Mullard: Letter, Letter (letter), figure, figure. Much easier. Thank you very much for posting this video. Having said all that, I am 6A8G. I am very proud of this designation, It doesn't have a Philips-Mullard equivalent, but if it did I think EH30 would be a good bet! Best, John:)
Hey man, or rather guys IF YOU BREAK A TUBE OR ARE GOING TO DO SOMETHING LIKE THIS YOU NEED TO WEAE GLOVES. THERES HEAVY METALS INSIDE OF TUBES INCLUDING MERCURY. also cutting yourself isnt fun. Be safe playing inspector gadgets man it's cool.
Good video. I like seeing things in the discovery phase (amp blowing up or not). It's really neat to learn new stuff which is why I am a subscriber. I have wanted to learn more about tubes and tube amps for years so, really digging it. Keep it going!
The east end of Tucson is bounded by 8800' Mica Mountain. Guess what it's made of? You can pick up big rocks of mica and spilt away thin sheets with your thumbnail.
Must be nice to have tubes to blow!!!(waste). I wish I had got in this when I was younger. My uncle worked on t v 's, radios, and pinball machines for a living and when he moved to memphis, he quit and left all his stuff in my grandmothers shed. There were probably a 1000 tubes in there. We used to shoot them with bb guns. Had I known.Oh well. Just my luck.We left it all there when we moved.
" ...yeah, Mica is some sort of plastic..." WRONG!!! It is NOT plastic. Mica is a mineral name given to a group of minerals that are physically and chemically similar. They are all silicate minerals, known as sheet silicates because they form in distinct layers. Micas are fairly light and relatively soft, and the sheets and flakes of mica are flexible. Mica is heat-resistant and does not conduct electricity. There are 37 different mica minerals. The most common include: purple lepidolite, black biotite, brown phlogopite and clear muscovite. You said that the 6H6 is a dual "Triode"....wrong again. It is a Dual Diode! Here is a Data Sheet on the 6H6: 6H6 Data Sheet frank.pocnet.net/sheets/127/6/6H6.pdf Thought you might also enjoy the information you can find here: Beam Power Tubes www.tpub.com/neets/book6/21a.htm OK, so you didn't tune the guitar first...you still sounded great! I think I liked the first tube you tried the best, but there are about as many opinions on that sort of thing as there are people. ;-) Enjoyed your video.
Does ANYONE go to a mall anymore? There are so many substitutions. I've been using old stock RCA 6L6 tubes instead of 7027 tubes in my VT-22 and V-4 amps for years.
I realize this video is one of your older ones. You may want repost it with captions correcting the mica thing. That'll save some repetitive commentary. As a geologist, it didn't surprise me that you didn't know what mica is. Most folks that don't deal with it professionally, don't know what it is. Why would they? It's boring as shit and not something you would run across everyday. I imagine that being corrected over and over for the same mistake gets old. Speaking of which, I've gotta get back to these TPS reports. That being said, if repeat corrections don't bother you, then keep on a rockin!
I consider it a success that I learned something. I just thought "mica" was the name of the component, didn't make the connection to the mined substance.
I dropped the 6P6S tube on the 6P43P-E tube and the 6P43P-E crashed Я уронил трубку 6П6С на трубку 6П43П-Е и 6П43П-Е разбилась Разбор радиолампы 6П43П Е. Устройство радиолампы. Analysis of the 6P43P E radio tube . The device of the radio tube. th-cam.com/video/EgvgtUvbb1U/w-d-xo.html
The Guitologist I did 1 or 2 as a kid. I remember my dad taking all the tubes out of the tv several times and taking them to Radio Shack and putting them on the tube tester.
Thanks for the comment. I know that now. It was discussed it in elsewhere in the comments. Thanks for reminding me though, I meant to put a note in the video.
Hi Brad, greetings from the UK. I’ve just watched your 6V6 Family of Tubes video, great work as usual. If you, or anyone else, is interested in watching an in depth video on how valves, sorry, tubes were made in the UK back in the early 1960s check out “The Mullard Story” on YT. If you can get past the awfully posh voice of the narrator it’s the most detailed video I’ve seen on how they work and their construction plus it’s fascinating look back to a time of human skills before the robots and thanks again for your videos.
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I know this is a older video but just wanted to clear up the whole mica thing. Mica is naturally occurring. It is a shiny silicate mineral with a layered structure, found as minute scales in granite and other rocks. The spacers in tubes are made of mica because it is a excellent insulator and can handle high temperatures very well. At one time Coleman used it for the globes on their lanterns.
Ive been using 6p3s in place of 6L6 and 6V6 on some of my lower powered amps. Most of the lower powered amps im using dont push the tubes very hard to begin with so there was no bias adjustment needed. But if you have a bigger amp and it really pushes those power tubes, you A) need to adjust the bias cooler or B) look at a different type of tube. But there are so many options out there. I stopped using 6L6 and 6V6 tubes awhile ago and i dont miss the high prices at all. Ive also been using 6p14p which are EL84 style tubes and 6n2p preamp tubes which are like a 12ax7. These tubes are well made NOS military tubes for peanuts. Cant beat em.
I dropped the 6P6S tube on the 6P43P-E tube and the 6P43P-E crashed Я уронил трубку 6П6С на трубку 6П43П-Е и 6П43П-Е разбилась Разбор радиолампы 6П43П Е. Устройство радиолампы. Analysis of the 6P43P E radio tube . The device of the radio tube. th-cam.com/video/EgvgtUvbb1U/w-d-xo.html
Постелите ковёр, чтобы трубки не разбивались о пол. Lay a carpet so that the tubes do not break on the floor.
Трубки храните внизу, чтобы они не могли упасть и накрывайте их сверху, чтобы на них ни чего не упало.
Keep the tubes at the bottom so that they cannot fall and cover them from above so that nothing falls on them.
actually Mica is a mineral. It is laid down in layers over time and mined for different reasons. One of which was for tube insulating plates.
I'm late to the party lol! The mica thing was driving me crazy, here in Asheville North Carolina mica is laying in the dirt all around here I've been told it's a crystal similar to quartz but only an atom thick which is why it seems to be laminated
Growing up in upstate SC, I would always find mica laying around in the woods. It seems like Everyone knew what it was in my area, but I don't blame The Guitologist for not knowing. It might not be very abundant in his location. Also, to the Guitologist: I Love your videos dude! They're extremely inspiring and I've been binge watching them for weeks now haha.
Mica is a naturally occurring mineral. It's pliable, heat resistant and non-conductive. It's had a ton of industrial uses.
6v6 sub for 6k6, 6l6 sub for 6f6 makes for better sound and a bit more gain. bias points are same. 6f6 and 6l6 are not drop in replacement for 6k6 -6v6 unless the filament supply can handle the current increase.
Nice video! I'm also a fan of tube archaeology, digging deep into the books for substitutes. I've used 6K6s and 6F6s for 6V6s with good results. I second checking the filament current draw particularly, as in some cases it's the equivalent of adding another output tube (or more) to the string. It's one thing to burn up a tube, it's another to burn up a winding on a power transformer.
+Mutt Amps Most vintage guitar amps are over engineered on the parts. The transformers of yesteryear will probably be more forgiving in general than some of the newer stuff. I'd say if it's a Fender or equivalent vintage amp and the transformer is from a well known company, you're probably ok. Also, modern Fender replacement parts will probably be fine. The transformer in this amp in the video is a Fender Champ replacement from Antique Electronic Supply. It held up nicely with all the tubes I tried.
+Mutt Amps I'd be very careful though if you're talking about changing multiple 6V6 subs in one amp. The additional current will add up fast.
Agreed about the old iron, most times it takes the additional current draw in stride. And yes, point taken about multiple tubes; two 6F6 = three 6V6 and change on filament current. I do a lot of my subbing on amps I've built out of old TV transformers that are used to running 20+ tubes in a set. Lots of filament juice to spare in a guitar amp.
I love obscure tubes! I'm currently designing and building an amp with two 25L6s in push-pull. I love that there are cheap, NOS tubes in someone else's trash that you can turn into treasure. I think it's more fun to design an amp around an obscure tube than to build a clone of the same designs using the standard tubes all guitar amps use.
If you're talking about 6V6 replacements I think the Russian 6П6С (6P6S) deserves a mention. So do 6V6-like tubes with other bases and filament voltages like the 7C5, 6BW6 and 12V6. No good for tube rolling maybe, but if you're into designing well worth a look.
+sa230e As long as we're talking other bases, must mention the 7-pin 6AQ5. 6V6 equivalent and great tube! Cheap NOS. I have a tone of them. It would be a interesting experiment to see if I could make some conversion bases for making 6V6 amps run 6AQ5.
I agree. Fender clones and Marshall clones are kinda done to death. I prefer trying something unusual too. Thanks for the comment!
+The Guitologist The base of that 6V6 you just broke might come in handy for that. You could strip out the internals, get a 7 pin socket and solder it up to the correct pins and fill it with epoxy to make it nice and solid.
BTW, I really enjoy your videos. Thanks for making them.
Yep.
@@TheGuitologist I dropped the 6P6S tube on the 6P43P-E tube and the 6P43P-E crashed Я уронил трубку 6П6С на трубку 6П43П-Е и 6П43П-Е разбилась Разбор радиолампы 6П43П Е. Устройство радиолампы. Analysis of the 6P43P E radio tube . The device of the radio tube. th-cam.com/video/EgvgtUvbb1U/w-d-xo.html
Although Mica is not a metal, it does contain metals. I like to think of it as a complex rock formation or even a natural ceramic
The 6V6G glass bottle MARCONI ( also sold labeled as GE ) sounds wonderful .
Just a quick note to say the 6v6 is not a pentode with '3' grids, it is a 'beam tetrode', those two silver C - shaped pieces that got ignored are the beam forming plates.
You are correct. I misspoke on the "3 grids" comment. I added a note on that and a link to an actual diagram in the description. I appreciate the comments immensely. I'm not trying to spread misinformation in my videos, but sometimes in the process of speaking off the cuff, mistakes get made.
The Guitologist
Haha, yes, sorry if I came across as a 'knowitall' - horrible! I love your videos and have only just discovered them. Anyhow hello from a new subscriber. I will try and make future comments less smart arsed ))
The Guitologist
PS the construction of the 6V6 is very similar to the early triodes which have such a great reputation for audio quality. A 6V6 triode connected should operate like a regular triode, more so than a pentode - take one of those apart and see the difference. The 6V6 connected as a triode sounds silky smooth. Though it has little power that way, maybe 3watts? for a single.
Could you add a bios switch to change the bios for these different tubes?
Hi Craig
Here in the UK we had the British Valve (tube) association so very different valve numbers ECC83/ 82 El84 KT66 Kt88.
I have a valve data book dated 1949 it has some American Valves, after WW2 we had a lot of American radio sets here. I also have a an Italian book with schematics for radios between 1932 and
I purchased one of the 5 watt amps from monoprice and would love to try some nos rca tubes to see if it makes any difference in tone.
6F6 also works... using one in a champ circuit, bias resistor is changed due to lower plate voltage with the transformer im using.. thing sounds great
Great video Brad! I have quite a few 6V6 amps. NOS everything else is easy to come by. I've even considered converting to 6AQ5. I have fistfuls of them.
6AQ5 = 6L31 =EL90 7 pins
6П1П 6P1P 6П1П-ЕВ 6P1P-EV 9 pins
@@АлександрЕрмаков-с3г Tak
6V6 and 6AQ5 are identical except for the socket. You can buy adapters so you don't have to molest your amplifier. I thought about getting 6BQ5 adapters for my dynaco power amplifier because the stereo 35 is hard to find. Some adapters have circuit.change built into the socket. No rewiring required. 73
Thanks Brad, Now I'm on the hunt for a couple of 6F6 's
Is there a possibility of a video on the 6L6 family?
I'm particularly fond of the National Union 6L6GA Black Plate when I can get them at a decent price.
Amazing how all that complex technology got substituted with transistors and then ic chips which did the same job as a room full of tubes.
It has that Black Crowes Twice As Hard thang going on.......way kool! I appreciate your desire to pull out of any given amp and guitar the tones it has to surrender. That is where my head is at with amps and guitars. I have friends that are long time players that miss new "Tone" events in their arsenal because they can't find their "one" tone, they just pass it by.. It just kills me when they miss opportunities to add to their spectrum. I want to own all the tones From Pete Anderson, to George Benson or Warren Haines ect..., sorry I didnt' mean to blow up. Keep up the great work!!!!
Pretty damn cool vid. I've been wondering about some of these crossover tubes as well
There are adapters so you can use EL84 tubes in an octal 6V6's socket. They don't sound much different.
Why not just buy 6aq5 adaptors there is no circuit change. You can buy the 6BQ5 adaptors but you run into bais issues the 6aq5 is the equivalent of a 6V6 tube. 6BQ5 are more expensive than the 5aq5 also. Like I said before I am considering getting the 6BQ5 adaptors for the 6CA7 or EL34. For my stereo 70 by dynaco. I don't need all that power for a room amplifier. The st35 is hard to find which use el84 6BQ5 tubes. 73
@@ronb6182 I believe the only issue there might be plate voltages 6aq5 are only rated at about 250v or so.
@@joesimon2018 yeah but that's where the adapters come into play they reduce the plate voltage. That's my conversion. A 6V6 and a 6aq5 should be identical. I will look both up.ok the adapters change the plate voltage. I would not change just the socket. Look up 6V6 to 6AQ5 conversion and buy that adapter. In my case I have to look for a 6CA7 to 6BG5 el84 adapters. 73
Love your channel. Mojotone has Jan 6EZ5's on sale for $5 bucks right now. Keep the tone coming. Roll Tide!
Thats cool there was a mica mind close to where I grew up they hit water & it flooded the quarry. The water glittered like gold never knew they used for tubes & electronics.
Cool story! If you ever go back out there, take some video and upload. That might be kinda interesting. Where did you grow up?
That's in Franklin Co near the home of Ty Cobb. Maybe I'll drive out there & get some footage. Not sure if they have it opened or gated , we would go there & some would jump off the cliff like 600 ft down into the water someone put up a cable w/a stop & a pulley w/a set of handle bars w/rope attached to pull it back to the edge that was to hold on to so you could clear the trees growing out of the side of the quarry you would have to scale the cliff face no way out straight down & up a few trees growing out here & there, crazy days back then.
7408 work in place of a 6v6gt.
Hey Man, love your videos! You might want to look into buying a 1957 ARRL handbook! The Tube reference section is A+! Seen a few on Ebay in the $20 dollar range!!
I wonder what swapping the tubes on a 2x10 Gibson hawk would do... I know the 12' version came with 6v6's. could probably get more bottom end with either 6v6's or 6l6's
Ive always wondered could you run the really Small bottled 5881 in place of 2 - 6v6's or do they draw more current and will it hurt the amp? Thanks for any help!!
how come there's no mention of the 7408 tube???? it was used widely in stereo integrated tube amps, it's a direct replacement, and can handle more wattage. They are awesome!!
YUP
if you hook up heater pins to a small battery would it make a good pocket hand warmer?
Mica is a layered mineral.
you can clip the posts on the plate and pick up and off gkl/same with the grids an d cathode
run it without the glass covering to see what would happen if anything.
Ya. That wouldbe interesting. Then go all photonic induction and severely overvolt it, and be like, " oh no, boys. I popped it!!".
Hi Brad, don't try to make sense of the American system of classifying valves - it doesn't always make sense. Take the 12SH7 for example, it's a Pentode, 12V filament, five active elements including the heater. Compare this to the 6V6 - 6V filament , five active elements including heater. With due respect to the American system, it's not the best. Fortunately the Net has a lot of help in finding valve characteristics. My favourite system belongs to Philips-Mullard: Letter, Letter (letter), figure, figure. Much easier. Thank you very much for posting this video. Having said all that, I am 6A8G. I am very proud of this designation, It doesn't have a Philips-Mullard equivalent, but if it did I think EH30 would be a good bet! Best, John:)
The “mica” is actually muscovite. It’s hydrologicaly deposited mineral.
Love the video, aside from looking at long nails , which drive me nuts for some reason. Thanks for the info.
He's a fucking guitar player, perhaps that explains the nails!. :)
Took one of these apart years ago and was surprised to find out the plate is not at the top of the tube and the cathode is not at the bottom haha
Hey man, or rather guys IF YOU BREAK A TUBE OR ARE GOING TO DO SOMETHING LIKE THIS YOU NEED TO WEAE GLOVES. THERES HEAVY METALS INSIDE OF TUBES INCLUDING MERCURY. also cutting yourself isnt fun. Be safe playing inspector gadgets man it's cool.
6K6... drive your reverb tanks! It's the easiest sub for 6v6... if the voltage isn't too high
Call me crazy, but I like the metal 6F6 best
When radio.shack was radio.shack the mall here served a purpose but it's been 20 years since that was the case lol
Hi, Im from Blackburn Lancashire UK, We used to have one of the Uk's biggest Tube making factories . Check it out.
Are the 4000 holes still there?
Good video. I like seeing things in the discovery phase (amp blowing up or not). It's really neat to learn new stuff which is why I am a subscriber. I have wanted to learn more about tubes and tube amps for years so, really digging it. Keep it going!
The Fender reverb unit uses a 6K6
6V6 is not a pentode, it's a tetrode, 4 active pinouts, pentode, 5
Yes , you're right ! Just like an EL34 is a penthode and a 6CA7 is a Beampower tetrode.. Many EL34 are labeled EL34/6CA7 ......BIG mistake !
real mica is a mineral, that has laminations.
Yep. I learned something in this one.
Best quality mica comes from India.
Same stone/mineral used in old mica domino capacitors.
The east end of Tucson is bounded by 8800' Mica Mountain. Guess what it's made of? You can pick up big rocks of mica and spilt away thin sheets with your thumbnail.
Mica I believe is the material it is made of.
I wonder how these would work in a self biasing amp..
Mica is a natural substance and a natural insulator. It is mined.
It's fiberglass & it's a insulating spacer. It's not mica.
The mica is....shockingly...made from mica! Hahahaha
haha...yeah, I know. I don't know what I was thinking.
6H6 is a Dual Diode
Ya! Very weird the fact you dont know that mica is a mineral...!
Heh. Guess I never thought about it before disassembling a tube.
Don't worry. Proceed with the excelent videos. I'm a fan...!
Hit the Orange Julius shop!! Best thing about a mall.
Must be nice to have tubes to blow!!!(waste). I wish I had got in this when I was younger. My uncle worked on t v 's, radios, and pinball machines for a living and when he moved to memphis, he quit and left all his stuff in my grandmothers shed. There were probably a 1000 tubes in there. We used to shoot them with bb guns. Had I known.Oh well. Just my luck.We left it all there when we moved.
In the words of Mick Jagger...you make a grown man cry.
Excellent Tube 101 Brad,your most useful and helpful reference vid yet.Thank you for taking the time.
" ...yeah, Mica is some sort of plastic..." WRONG!!! It is NOT plastic. Mica is a mineral name given to a group of minerals that are physically and chemically similar. They are all silicate minerals, known as sheet silicates because they form in distinct layers. Micas are fairly light and relatively soft, and the sheets and flakes of mica are flexible. Mica is heat-resistant and does not conduct electricity. There are 37 different mica minerals. The most common include: purple lepidolite, black biotite, brown phlogopite and clear muscovite.
You said that the 6H6 is a dual "Triode"....wrong again. It is a Dual Diode! Here is a Data Sheet on the 6H6:
6H6 Data Sheet
frank.pocnet.net/sheets/127/6/6H6.pdf
Thought you might also enjoy the information you can find here:
Beam Power Tubes
www.tpub.com/neets/book6/21a.htm
OK, so you didn't tune the guitar first...you still sounded great! I think I liked the first tube you tried the best, but there are about as many opinions on that sort of thing as there are people. ;-)
Enjoyed your video.
I have the Philco, GE and rca tube manual I like the rca one the best
Really interesting video. Who knew?? Thanks, , ,
Does ANYONE go to a mall anymore? There are so many substitutions. I've been using old stock RCA 6L6 tubes instead of 7027 tubes in my VT-22 and V-4 amps for years.
There's a reason everything in a mall is designed to pry money from the hands of teens. No one else is stupid enough to go to one.
6fq7's????
If they work then I'd use the dirt cheap tubes instead of the 6v6.
+orange70383 yep.
I realize this video is one of your older ones. You may want repost it with captions correcting the mica thing. That'll save some repetitive commentary. As a geologist, it didn't surprise me that you didn't know what mica is. Most folks that don't deal with it professionally, don't know what it is. Why would they? It's boring as shit and not something you would run across everyday. I imagine that being corrected over and over for the same mistake gets old. Speaking of which, I've gotta get back to these TPS reports.
That being said, if repeat corrections don't bother you, then keep on a rockin!
I consider it a success that I learned something. I just thought "mica" was the name of the component, didn't make the connection to the mined substance.
Thanks for the info.
Do you have any idea what you doing
I dropped the 6P6S tube on the 6P43P-E tube and the 6P43P-E crashed Я уронил трубку 6П6С на трубку 6П43П-Е и 6П43П-Е разбилась Разбор радиолампы 6П43П Е. Устройство радиолампы. Analysis of the 6P43P E radio tube . The device of the radio tube. th-cam.com/video/EgvgtUvbb1U/w-d-xo.html
Whenever you see lightning bolts in things, either the nazis designed them or they are in the back of your favorite guitar amp.
6:13 was very satisfying
Interesting comparison..... 6v6 s. Rule!
Mica is a mineral
Micah is a mineral like quartz
you kids didn't get educated 😒
Mica is a mineral en.m.wikipedia.org/wiki/Mica, not to be confused with the minor prophet Micah.
Yep. In caase you couldn't tell, my first time smashing open a vacuum tube and dissecting it.
The Guitologist I did 1 or 2 as a kid. I remember my dad taking all the tubes out of the tv several times and taking them to Radio Shack and putting them on the tube tester.
43:19 Damn the torpedoes full speed ahead. Your as big a caution as I used be. Let it ride!
Arrrgghhh mica is mica.
Thanks for the comment. I know that now. It was discussed it in elsewhere in the comments. Thanks for reminding me though, I meant to put a note in the video.
sorry Brad not Craig duh
Hi Brad, greetings from the UK. I’ve just watched your 6V6 Family of Tubes video, great work as usual. If you, or anyone else, is interested in watching an in depth video on how valves, sorry, tubes were made in the UK back in the early 1960s check out “The Mullard Story” on YT. If you can get past the awfully posh voice of the narrator it’s the most detailed video I’ve seen on how they work and their construction plus it’s fascinating look back to a time of human skills before the robots and thanks again for your videos.
+Andrew Miller thanks Andrew. Already seen it. It was great.