Look Inside This Pioneer Tube Receiver!
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- เผยแพร่เมื่อ 26 มี.ค. 2020
- Look inside a Pioneer Tube Receiver from the 1960's! Model SM-Q140. Click the SHOW MORE tab below for links.
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#learnelectronics #restoration #fixelectronics
To learn more about electronics in a very different and effective way, and gain access to Mr Carlson's personal designs and inventions, visit the Mr Carlson's Lab Patreon page here: www.patreon.com/MrCarlsonsLab
Paul,
Thanks for being so prolific while I am house-bound. I know the time and effort required to produce good-quality YT videos, and yours are the best.
Dear Paul, great receiver. My parents had a Grundig Majestic multi-band radio/phonograph. And it had a green magic-eye tube in the front. Great find!
@@ianbutler1983 I concur!
That magic eyes are special and nice
I used to own a Sherwood S-3000 FM Tuner. Great find - two magic eyes!
I wanted to say how much I enjoy watching your videos. I appreciate the way you explain things, share your knowledge and experience working with different components over the years. I studied electronics back in my college days and have spent almost 40 years in the IT business. Thank you.
You are very welcome Phillip! Thanks for your kind comment too.
Why would any one want to put a thumbs down on this guy. He is so good at what he does and he is willing to explain what he is doing to whatever level of expertise you are trained or knowledge you at. I have never seen a video I have not liked or gained knowledge from. Keep it up.
Those few are from the anti-matter world
@@MrMartinkimber or simply put, those who spread negativity because that's about all they have to contribute.
Or they might be the people who swear by the oil filled caps
I loved Pioneer equipment, all I have left of my old Pioneer equipment is the PL50 turntable I purchased in Vietnam. I used to have a Hitach AM/FM/Cassette recorder/player combo but some prick stole it when I went home for the birth of my son in 71. Best damn radio I ever had.
I bought my 1st stereo system in late '70's at a chain. Wanted to hear the best from my phono collection.. Pioneer. This receiver is incredible.
Perfect viewing while we are all in self-quarantine.
Used to have one of these....love the magic eye gimmick ;)
restoring a pair of Marantz monoblock amps found in Dad's garage while clearing it out for sale
tubes light up so far ;)
One more of Mr Carlson's video to enjoy and learn. I hope one day, Mr. Carlson take on a The Fisher 80T hi fi preamp and AM/FM tuner and also a The Fisher 80T amp. I've got both from the person who restored and aligned them. He made a great job. But it's never too much to know more about your favorite equipment.
Mrs Carlsons lab your vintage pioneer tube receiver from the 1960s is awesome my friend 😅😅😅
Mr Carlson you are positioned to answer this question better than most electronic engineers: simply speaking , “ how are they (receivers) all different from each other”? What does one brand use in its design that other brands do not? Could also be asked “wherein does the quality lie”?
I am an old guy , it is wonderful to listen to you. Just don’t have the drive to learn electronics. But sure a great sense of curiously
Paul, stay safe, stay healthy and whatever happens, keep breathing!
A special thing about Mr. Carlson's Lab, almost everything I have watched, except for your inventions and other test equipment, are older than me. I'm not young. I enjoy seeing how you transform a rats nest of wires and components into a nice logical layout. My very earliest years, I do recall my father working on a TV with tubes, and taking several tubes to Thrifty's to test and buy a replacement or two, but that's about it. These radios "belong" to our grandparents. They are fascinating and it's good to know they can still be serviced. I would like to see an evolution of electronics, documentary/special, where you cover the design and components of the earliest radios to modern times. What technology will likely last the longest?
After watching one of your extended play videos wherein you repaired an amp, I was excited to watch this video. Fascinating suff. All receiver, not face time. All receiver, not snowflake sound effects. Not a made for tv reality show. I love high end receivers. There's nothing better than super loud music with no distortion. Audiophile vs Van Halen. My ears are still ringing.
Way back in the 60s I used to repair a lot of PA amplifiers, many of which used EL84 tubes (6BQ5) in class B push-pull. Those wax capacitors were terrible as you say and when they leaked onto the control grids of these tubes it would often write off the mains transformer as well. There was a problem with the tubes themselves though. Most were Mullard, a usually good make, but the EL84s used mica separators for the electrodes and the mica would gradually break down and cause the same problems as the capacitors, but in this case caused a leak between the screen grid and the control. The solution, after a great deal of experimentation, was to replace the Mullards with a Japanese make, Pinnacle, which used ceramic separators. I have no clue who actually made Pinnacles (maybe someone here can enlighten me!). Solved that problem completely!
In the era just before stereo MPX FM, (late 1950's) these dual turner systems were popular. My mother did "traffic" at a small am/fm station and said one of the DJ's would come in on saturday morning and do a "stereo" show. This was accomplished by feeding the output of a stereo phono preamp to the am mono console and the fm mono console. This must have been very difficult and one channel was very low fi. Stereo was clearly a novelty then.
What a huge amount of effort that went into designing and building this unit. Magnificent.
I love this reciver, those caps often go dry ,become dried sludge and the Japanese stuff from the 60's are so well roll crimped that they dont leak very often.
Very well made stuff.
Please restore this tuner,Don't cast it to pile .I was so happy at the end to hear it will be saved.
Mr Carlson your vintage pioneer shortwave tub receiver from 1960 is cool
I have a Pioneer/Allied SM-G204 that is similar to that one .Mine has been restored and i love it. Sits right beside My SX-1980 . Love the old pioneers
Oh boy a Pioneer SM-B201! It's in fantastic shape! Very worthy of a rebuild by Paul Carlson! In early days of stereo a radio station would send a signal to both
an AM and FM frequency using two separate towers. One channel was on AM and the other was on FM hence you would get a stereophonic effect.
This was expensive for them to do this and was a very short lived idea. I love anything with "magic eye" tubes BTW!!! Look up Fisher 800-B to see a the
competitions version of this kind of receiver The Fisher 800-B had 22 tubes to do what the Pioneer did. But it also supported true multiplex stereo FM of today!
Get real its useless garbage today , who the heck still listens to am or fm on serious terms ..
One side fm one side am, it’s gimmicky at best 😂
Nobody
@@MichelLinschoten If you can't appreciate vintage electronics then maybe collecting stamps is more your line?
@he's the Master lol! WELL Said Mr Master ;-)
I still don't know we love receivers this much!!? 😊 Thanks Paul for this share!
I’m still patiently waiting to see the restoration on this one!!!😊😊😊 Gonna be AWESOME!!!
Very nice Pioneer receiver. Pioneer has always been one of my favorite electronics brands over the years. The best "bang-for-the-buck" there is IMHO. I previously owned many Pioneer car stereo systems, and I still have 2 Pioneer surround sound receivers (and speakers) , as well as a Pioneer turntable. I have never had a Pioneer product fail....ever. Yes, there are more expensive "designer" electronics brands, and even better sounding systems, but for the price Pioneer cannot be beat.
Interesting. I have a H. H. Scott AM-FM stereo tuner that is similar to this receiver. It has the separate AM and FM tuners for simulcast stereo, but it is also decodes FM multiplex for true FM stereo. This tuner hit the market just as FM multiplex was coming into use, H. H. Scott being one of the pioneers in this technology. H. H. Scott also sold standalone FM multiplex decoders for use with older FM tuners.
My brother in law had one of these SM-Q140s purchased around 1967 (it was a showroom demo), with a deep blue enamel in place of the black. With a set of Rectalinear lll Highboy speakers it sounded fantastic. I now have those speakers and they are used every day with my Kenwood KR-A5520 receiver. I had to replace the output transistors & main audio power supply filter capacitors for the Kenwood. I ordered the filter capacitors from China. I needed only two so I ordered four of the filter capacitors, as usual. One of the four "new" capacitors was an open circuit, which is why I "over order" from Chinese suppliers.
Just want to thank you for being there with these videos while so many of us are stuck at home. You are really fulfilling our electronics geek needs.with all you know about electronics I'm surprised you're not Dr. Carlson at this point!
I love your videos on electronics repairs. How about a video on saving faulty or acting -up routers.
Capacitors, as the age become leaky...
Guess I'm an old capacitor...
LMAO!! Me too!
@Robert Johnston make sure to look for the line... That marks the foil end where the electrons dribble out....
@canuckguy worried TMI
Yup, and the mind does not have the same storage capacity it once had either...@62
My capacitor leak several times per night
What an absolute gem. Looking forward to this restoration.
Amazing how beautiful designs were back then. Love these videos. So calming and relaxing.
I find this an exciting project. This is certainly a unique receiver that needs restoration. So purely analog.
Who gives this a thumbs down ? ? Thanks for the video Mr Carlson
That is one gorgeous receiver... great find!
Despite that those old oil caps are leaky today, it's clear that this receiver was made to last. Also I wish to remark the elegance of that front panel. The designers kept the symmetry in mind just like the rinascimento fiorentino.
Excellent content. It's particularly good to see stuff like this on TH-cam right now.
First, Sir, even though I only understand about 5% of what you do, I still so enjoy watching your extraordinary teaching manner. Second, as a mechanic who has restored many different machines, I am always thrilled when I can find an unmolested original condition machine. I expect you are too.
Just love listening to his commentary and knowledge. Every video is a learning experience.
That is the coolest receiver I have ever seen. In great condition cosmetically as well. nice job Mr. Carlson as usual.
Just amazing. Those tuning eyes wow they were the best. I'm glad this thing is in the right hands.
Hi, Paul. This radio was probably made just before the FCC approved FM stereo. Many receivers and tuners of the era had a separate a.m. and separate f.m. tuner. Left channel will be on the a.m., right channel would be on the FM or vice versa. And as you suppose, one of the a.m. tuners would be wider-band and the other tuner would be in narrower or standard bandwidth.
Cool find!
Some of the early 1960s console stereos offered exactly the same feature with separate AM and FM mono tuners, with the flexibility to output either mono source from the left or right, or built in vs. remote speakers, plus there is a reverse switch to swap the left and right channels. Some really crazy featured stuff came out at that time.
I've seen a number of these types of units from early stereo. Two AM tuners so you could do AM + AM stereo as well as AM + FM. In some cases, the channels were not identical. I've got a couple of units for stereo retrofit: Stereo preamp but only one power amp. The idea was you were to use your existing HiFi for the other channel. (That mono HiFi probably cost a mint and people didn't want to just push it aside.) Early stereo was weird. It may explain some early mixes. A number of Beatles tunes has vocals in one channel and instruments in the other. I'm surprised this unit doesn't have a reverse switch so you could route the vocals into the less HiFI channel. Given the difference in output transformers, I'm not sure as this unit is a good candidate to restore for enjoyment, bur rather to treasure as a museum piece.
I'd be curious to see how that "MPX" function is wired. If it's like my Sansui, there was a provision for an add-on multiplexer for FM. But instead of the L+R/L-R system we use today, the baseband side fed one channel and the multiplexed size fed the other. Like I said, early stereo was weird. (And on a totally unrelated note, it seems fitting that the word "weird" violates the rule of "I before E except after C".)
@@russellhltn1396 Yep! There's a 'science' behind that!
@@russellhltn1396 Yes, the Sansui 220 has this MPX out RCA Jack on the rear plus a L+R decoder input, a modern solid state MPX unit connected here does an excellent job. The Sansui 250 was the same unit but with built in Stereo decoder, doesnt work too well though IMO. I have 3 of those units in various states of disrepair, maybe I should upload a video one day..
The stuff you find is just amazing!!! Thanks for sharing!!!
Great video. Thank you and hope you and your family stay safe!
Always thumbs up for you Mr Carlson....your knowledge of tube circuits are second to none....
You were the inspiration for me to get back into electronics (from my youth) and built my own lab. It has just snowballed from there. What a fantastic hobby.
All precision, wire wound resisters. Very impressive.
thanks for sharing your expertise.
I love the look of symmetry on this set it's beautiful!
This is awesome. I found this exact receiver at an antique store a couple of years ago. Very little information out there. It didn't sound the best but everything worked well and it looks like new. I listened to it for a couple of days haven't powered it on since. I'm anxious to see the restoration and to hear your opinion of the sound when you get it sorted.
Paul: These preview videos are very interesting and I look forward to seeing these projects get restored, thanks for sharing these older projects. Although these were for sale in my younger days, and I have come to cherish my original pioneer pieces as well as radio shack test equipment.
What a cool looking radio! We have some old pioneer receivers from the 80's, but none this old or rare for sure! Can't wait to see this restoration!
Thank you for the excellent educational content during this time of isolation.
Omg. When I was a child my uncles friend had this exact receiver as well as a bunch of hi-fi audio stuff from the mid- late 60's in his living room. Thank You for posting this Mr. Carlson.
You're welcome Ric.
Hey Paul thanks for these videos
What a absolutely beautiful and well made piece of equipment, I have owned vintage equipment most of my life but I have never seen this receiver made by Pioneer. Thanks for sharing.
Looking forward to next time thank you Mr Carlson for recent video 60's were awesome.
Thanks, Paul! Super cool old receiver! I look forward to the restoration video.
That's an awesome receiver Paul. I work on a lot of audio equipment and I think that is the earliest Pioneer stereo reciever that I've seen. Very cool. Thanks for sharing it!
As busy as that unit is, your camera angle of it would make a neat shop poster.
Take a screenshot for your desktop
The engineering that went into this is amazing!
WOW!!!! That’s one I just cannot wait to see the restoration vid for! VERY COOL!
I have a friend who owns a Fisher tuner from 1958 similar to this one.Separate FM and AM tuners.Awesome sensitivity in both tuners.Still works but FM is Mono.However, came from factory with a connection in the rear of the chassis to add a Mutiplex FM Stereo tuner in development still at that time.
9:03 "Now a lot of audio guys swear by these oil-filled capacitors; I swear at them."...Paul, I needed that laugh, thank you. I have an eclectic multiplicity of TH-cam channels, but I really enjoy your electronic archaeology videos. I can't wait to see these restored.
Mr Carlsons lab you are good at restoring vintage shortwave receivers and alignment of vintage shortwave receivers with ssb my friend 😅😅😅
Really nice unit. I love your way to explain the layout and function. Stay safe and take care.
Great looking device, thanks for the video!
Looking forward to when you get cracking with this one. I have an SM-R150, which is the same age and is just the amplifier part. There are a lot of paper-in-oil capacitors, so waiting to see your strategy with those.
an awesome find...an original beauty
Big thumbs up. Cool radio. Thanks for the project. The video is appreciated.
What a lovely receiver.
Great project...very interesting and love your style...Thanks
My father was a HAM an loved stereo systems, Reel to Reel, and my childhood was filled with this awesome electronics, I remember too the smell of this components and fenol boards, solder etc.. Lovely memories.
It is a pleasure to watch your videos as I seem to learn something new each time regardless of the content. I suspect that you field this question quite often but it would be a great addition to your commentary if you could offer a story as to how you come to possess some of this equipment. Frankly, it wouldn't matter if it was the truth or fiction as such stories would simply add a touch of magic to the fabled aura of the Carlson Lab.
Nice to see a video from someone with a really good camera and microphone. Plus good lighting,
Love the dual Eye Tubes, thanks for sharing...Vic
What a beautiful piece of kit. Looking forward to seeing its resurrection!
thanks for sharing what you ave learnt its great to learn new things . the front of that unit reminds me a little of a classic 60 ty's American car , just a really cool look , thank you !!
Excellent project 👏👏
I mean... I’ve seen your leakage detector before in your other videos, but it would’ve been awesome to see what the forecast was on the one that did pass. Mainly just re-show is all “new and old” how it works. That and I love how you explain things. Keep up the great work, stay well and have yourself a great day. And thank you so much for your content.
Good evening Mister ... Beautiful item !!! wonderful construction and very cleaver about the distribution of differrents parts !!! In this difficults times god bless you Mister !!! Eric from France
I love vintage radios. And I'm new to your Channel. Now, I will say that my knowledge of electronics and radio repair, could be fit on the head of a pin, and still have room left over. Nevertheless, I love watching this channel and I love your videos. And I always learn something new. Learning what transistors, capacitors, and reflectors are etc. I know your doing your video's for those "in the know". But don't forget us newbie's too. And try to explain the function of these components are. Keep the video's coming Mr. Carlson.
Gosh oh gee look at this beauty. How I would love this in my set up
Excited to see the restoration on this!
Never have seen a Japanese valve set like this before, thank you for showing!
This series was beautiful and nicely made.
What beautiful receiver! Very cool looking.
Funny story, I had an old tube tuner in college in the early 80s, one night I found this (FM) station doing "experimental music hour" (really bizarre electronic stuff), then reggae hour and then jazz... cool station. Turns out it was only like 8 blocks away (not even sure it was legal, could've been students doing a pirate station). Other people in my dorm thought it was cool too, but none of them couldn't tune it in well on their fancy digital tuners, only my late-60s vintage tube tuner could pick it up clear as day (with a 5' piece of wire off the back literally hanging to the floor as an antenna).
WOW I've never seen pioneer this old💞 very very cool!!
Its very informative video thanks for your time and efforts 👍
Fascinating ......... That capacitor test box is a must have item. I have to look for it now. That was a great clip thanks.
I've done one FM alignment since I started this hobby. It was interesting. I'll be looking forward to this restoration just to see how you go about aligning the FM band.
Wow what an awsome unit, lots of thought and desire went into the radio (The designer had quite an imagination) I like that i sure like your capacitor gizmo. thanks for sharing 100 points Mr Magoo in Milo, Maine
i love this channel. and i show all your videos. I still have 2 tube radios that I still have to repair. and only through this channel do I dare to compare. this is usually very easy to do.
Greetings from Germany
👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍
Yes, dear friend: just some few seconds before you tell about, at six and half minutes of this video, I've also realized that those audio impedance transformers have different sizes, and too thought that it could cause any proportional difference of the amplitudes between left and right channels - but, as it's of course, it doesn't happen! Pioneer wouldn't never make a unbalanced stereo device, sure!
That is gorgeous!
I rewound many of those tuning dials back in the day. Pay very close attention to how it is wound before taking it apart!
A look inside and a quick bit of trouble shooting too. Thanks!
Mr Carlson your pioneer tube reciver is cool
Mr Carlson my hobbys are painting pictures and lisining to shortwave and ssb iam thinking about getting my ham license I have 4 shortwave receivers and Iam thinking about getting Tecsun Pl 660 mw lw fm air SW ssb 6 bands
Fascinating stuff Mr. Carlson. Keep up the good work :)
What a nostalgic receiver.... !
Continue with the restoration, please 🙏
(Can be a 22 hours clip, if you want... we have a lot of "confined" time... 😂🤣😂 in this locked down season.... ) 👋😀