WoW! That panel is beautiful. I just had my '64 Super Reverb worked on and requested Blue SoZos. Amp guy had to also use SoZo Yellows, and I was happy to pay $100 for parts in order to get rid of all the junk it had collected over the years. SOUNDS WONDERFUL. Also requested SoZo silver micas in the treble positions and the top end just sounds sweet! Tung-Sol 5881's, too! These Concerts are fabulous amps! Second and third amps I ever played through were two of these, nearly brand new.
Of course there will always be the vintage-original-nazis who complain that replacing the caps will destroy the “magic sound”, which they claim can never be recovered (unless you put the old parts back in). What they fail to understand is that a 100% original condition vintage amp typically sounds nothing like how it did in the showroom when it was brand new. In a sense, those old caps and resistors are no longer original in that they are often out of tolerance or hardly functioning at all. But those persons would prefer to gig with a severely handicapped and unreliable amp, based on how it looks on the inside, despite the audience only ever seeing the outside of the amp.
Would agree on the vishay over the relabeled yellow caps. Has anyone tested the ESR on the yellows at 1k,10k, 100k or 100hz ? 70 dollars extra for "perdie" cap that no one sees is not a good way to spend money IMHO.
I use industry surplus Panasonic polypropylene caps a lot when recapping tube stuff since they are very good capacitors and I can often get them cheaply in lots of 100. They do tend to be short-leaded, though.
I repaired and refurbished one of of these brown Concert amps some years ago; best tremolo ("harmonic vibrato") I've ever heard from a Fender, bar none (I did have to replace the oscillator capacitors in order to get it to work). Those yellow Astron caps are also found in Danelectro/Silvertone amps. Just replace them, dont bother to deliberate the issue.
@@PsionicAudio , I know you are; I posted that for the benefit of others...... although sometimes there isn't much you can do to convince the "don't ruin the mojo!" crowd, who believe in magic instead of science.
@@BradsGuitarGarage , perhaps you are, depending on your alcohol consumption! (Hope you're having a good time in Japan; and may your plane not have parts falling off it during the journey home!).
Wow, where do you get these absolutely mint amps from ? Surely has to be the same owner as the other 60’s Fender amps you’ve been working on recently ?
Lyle gets more vintage amps in because of the trust he's earned over the years for his knowledge, know how, work ethic, and skill-set. Plus, his blue-collar explanations, video/sound quality, and vintage radio voice make it interesting for players as well as techs.
@@PsionicAudio thank you. Additionally, can you discuss any shortcomings that may happen if you revise the reservoir capacitor layout from the two 20uf 600v in parallel to the revised 70uf 350v series layout used in every subsequent circuit? Especially given that the caps in there are most likely 500 and the voltages present are nearing 475 or higher using current wall voltages? Your work is great and thanks for your time Lyle. Excited for these browns. They are special.
There are so few demos of how these amps sound. Here is my 62 bandmaster which is a very similar circuit to the concert. I hope someone finds this as useful as the content Lyle is putting out. czcams.com/video/Le6xYStmSVQ/video.htmlsi=WAbE6m201hmDIMmH
What's nice is the attention to detail - the doghouse caps labels face up and they have a little expansion strain relief.
What an absolutely wild thing for them to be making in 1960… awesome
I have a Rivera-era Concert “II.” Now, thanks to you, I’m GASing for a ‘60s era original. 😉
WoW! That panel is beautiful. I just had my '64 Super Reverb worked on and requested Blue SoZos. Amp guy had to also use SoZo Yellows, and I was happy to pay $100 for parts in order to get rid of all the junk it had collected over the years. SOUNDS WONDERFUL. Also requested SoZo silver micas in the treble positions and the top end just sounds sweet! Tung-Sol 5881's, too!
These Concerts are fabulous amps! Second and third amps I ever played through were two of these, nearly brand new.
Amazing to see a nearly original Concert being brought back to life. Thanks for sharing.
It's aways good to get an Emily Litella impression along with the tech info, well done!
Perfect timing for someone getting a Concert (me lol)
Amazing how many have very little maintenance in 60 plus years, a testament to build quality, amazing 😊
This is a good one! I’m looking forward to following the progress. Thanks for posting!
I got to play one of these a few years ago- it was my first experience with harmonic trem. What a beauty!
That is a thing of beauty
Of course there will always be the vintage-original-nazis who complain that replacing the caps will destroy the “magic sound”, which they claim can never be recovered (unless you put the old parts back in). What they fail to understand is that a 100% original condition vintage amp typically sounds nothing like how it did in the showroom when it was brand new. In a sense, those old caps and resistors are no longer original in that they are often out of tolerance or hardly functioning at all. But those persons would prefer to gig with a severely handicapped and unreliable amp, based on how it looks on the inside, despite the audience only ever seeing the outside of the amp.
My rule of thumb is to ask myself "What would Leo have done?"
Whew! I'm glad I just turned 13.
Would agree on the vishay over the relabeled yellow caps. Has anyone tested the ESR on the yellows at 1k,10k, 100k or 100hz ? 70 dollars extra for "perdie" cap that no one sees is not a good way to spend money IMHO.
Amazing piece of history.
Looks at Mouser order for my DIY JCM800 clone... Vishay MKT and MKP., TE Connectivity, Vishay, and Yageo metal & wound resistors..
I use industry surplus Panasonic polypropylene caps a lot when recapping tube stuff since they are very good capacitors and I can often get them cheaply in lots of 100. They do tend to be short-leaded, though.
I use a Jam Pedals Harmonic Trem that is "always on" with dobro. It is a magic effect, would love to have a brown face with it built-in.
Keep up the good work, Lyle 😊
Yeah! Daddy's gonna take us on a Concert trip! Whoehiii.
Sorry. Couldn't resist reacting like a 12 year old. Feel excited.
Spectacular!
Yew little bewdy!
I repaired and refurbished one of of these brown Concert amps some years ago; best tremolo ("harmonic vibrato") I've ever heard from a Fender, bar none (I did have to replace the oscillator capacitors in order to get it to work). Those yellow Astron caps are also found in Danelectro/Silvertone amps. Just replace them, dont bother to deliberate the issue.
I’m not deliberating, I’m explaining. ;)
@@PsionicAudio , I know you are; I posted that for the benefit of others...... although sometimes there isn't much you can do to convince the "don't ruin the mojo!" crowd, who believe in magic instead of science.
Who's debilitated?
@@BradsGuitarGarage , perhaps you are, depending on your alcohol consumption! (Hope you're having a good time in Japan; and may your plane not have parts falling off it during the journey home!).
@@goodun2974 As far as I know that mainly seems to happen to American aircraft! 🤣 Fingers crossed, though!
Cool stuff
I prefer the cosmetics of the Brown amps to Blackface. And the tremolo. And the presence of a presence control. But I like reverb so ...
Wow, where do you get these absolutely mint amps from ? Surely has to be the same owner as the other 60’s Fender amps you’ve been working on recently ?
An inheritance perhaps?
Not Lyle’s of course, but the same person that brought that brown Princeton
Same client with the Reverb unit, the Princeton, and the Bassman with two more to come.
Lyle gets more vintage amps in because of the trust he's earned over the years for his knowledge, know how, work ethic, and skill-set. Plus, his blue-collar explanations, video/sound quality, and vintage radio voice make it interesting for players as well as techs.
@@PsionicAudio is it Joe?
@@PsionicAudio can’t wait to see these next two Lyle 😉😉
I have one that is earlier than this. Mine would be a center volume. Would you please discuss how the vibrato works on this amp. Thank you.
Vintage amps are definitely for people other than me. I don’t want the responsibility or hassle. This thing made it 64 years, it needs a caretaker.
What does a bright glow on the output tubes after taking an amp off of standby means?
Mine had a 15in speaker in it
Can you discuss the bias when you do part 2 and whether these amps can safely be run off wall voltage given how high the voltages are in the circuit?
All to come.
@@PsionicAudio thank you. Additionally, can you discuss any shortcomings that may happen if you revise the reservoir capacitor layout from the two 20uf 600v in parallel to the revised 70uf 350v series layout used in every subsequent circuit? Especially given that the caps in there are most likely 500 and the voltages present are nearing 475 or higher using current wall voltages?
Your work is great and thanks for your time Lyle. Excited for these browns. They are special.
There are so few demos of how these amps sound. Here is my 62 bandmaster which is a very similar circuit to the concert. I hope someone finds this as useful as the content Lyle is putting out.
czcams.com/video/Le6xYStmSVQ/video.htmlsi=WAbE6m201hmDIMmH
Yum😁👍
😎✌👍❤🖖