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Hoffman Amps Forum image Author Topic: 1954 Gibson GA-40 Les Paul restoration Capacitor Cans  (Read 3133 times)

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Offline frankeg

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1954 Gibson GA-40 Les Paul restoration Capacitor Cans
« on: August 22, 2018, 08:40:01 am »
I have read several of the posts here on the GA-40 LP but I didn't see anything specific about replacing the Cap Cans. There are two cans on my 1954 LP. The 1st one has 2 caps in it 20uf/450v & 10uf/450v. The 2nd also has 2 caps, two 10uf/450v. The cans are rather tall & skinny and are riveted to the chassis. I cannot find identical replacements and am wondering how others here handled this. I have room for using single caps but will need to figure out their mounting. If I do that, I'll just leave the old ones in place & disconnected. Any thoughts/advice?
« Last Edit: August 22, 2018, 08:53:10 am by frankeg »

Offline sluckey

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Re: 1954 Gibson GA-40 Les Paul restoration Capacitor Cans
« Reply #1 on: August 22, 2018, 08:45:43 am »
I'd just use individual axial caps.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline kagliostro

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Re: 1954 Gibson GA-40 Les Paul restoration Capacitor Cans
« Reply #2 on: August 22, 2018, 09:09:15 am »
Give a look here

http://metro706.hostmetro.com/~archradi/restoration/electrolytics.html











or use standard radial e-cap (less expensive than axial ones)

of course go to good quality capacitors with your choice

Franco
« Last Edit: August 22, 2018, 09:19:07 am by kagliostro »
The world is a nice place if there is health and there are friends

Offline frankeg

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Re: 1954 Gibson GA-40 Les Paul restoration Capacitor Cans
« Reply #3 on: August 23, 2018, 07:51:33 am »
Rebuild the cap can. Cool idea! Thanks for the pics & link!

Offline kagliostro

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Re: 1954 Gibson GA-40 Les Paul restoration Capacitor Cans
« Reply #4 on: August 24, 2018, 12:34:58 pm »
Quote
Rebuild the cap can.

For a 1954 amp it can worth the effort

Ciao

Franco
The world is a nice place if there is health and there are friends

Offline Platefire

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Re: 1954 Gibson GA-40 Les Paul restoration Capacitor Cans
« Reply #5 on: August 28, 2018, 08:06:30 pm »
I got an old Kalart Reel to Reel amp I need to do the same thing if possible---thanks for the pictures.
I had a more modern 1960 GA-40 Les Paul amp and was a cool amp with nice break up. Platefire
On the right track now<><

Offline bmccowan

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Re: 1954 Gibson GA-40 Les Paul restoration Capacitor Cans
« Reply #6 on: August 30, 2018, 06:13:49 am »
I rebuilt a GA-40 a few years ago. I disconnected the cans, left them in place, and found room for 4 axial caps. If I were to do it now I would likely use the F&T axial dual caps - 1 32x32 and 1 16x16 as there is limited space in the chassis.
BTW - these are very cool amps in my opinion. Lots of gremlins in old Gibson amps, but the LP sounds great with that 5879 preamp.
Mac
“To my surprise, when I opened my eyes, I was the victim of a great compromise.”
John Prine

 


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