re-wiring mid 1960's Gibson amp reverb tank

Started by metric0383, September 17, 2016, 10:51:44 AM

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metric0383

Hello, Thanks to anyone who's willing to take the time to help.

I recently purchased a used mid 60's Gibson Explorer amp GA-15RVT. One of the previous owners for some reason removed the amp's reverb tank so my goal is to get the reverb working again.

I purchased a new reverb tank from Frank Fendly at www.studiosoundelectronics.com (he's a very nice guy BTW) so I have the correct reverb tank but I need help deciding how to solder this correctly. 

I have attached the schematic for the amp as well as interior pics. According to Frank at www.studiosoundelectronics.com, what i need to do is solder a cable at C11 and then plug that into the reverb tank with an RCA. The problem is that I don't know how to read schematics. Can verify this and or tell me where C11 is? 

I have interior pics of the amp as well as a pdf of the schematic. How do I attach them to this post?

Thanks,

Daniel

duck_arse

hello and welcome metric0383.

for all things you want to post, they need to be "hosted" somewhere on the interwebs. that somewhere is then the url that you need to provide in the thread. if it is an image, you poke mona, she gives you tags, you paste your image url, we all look and comment. with pdf's, you need to provide the address in the thread as a link, pdf's won't display in the thread.

if you stick all the images in a buckett at one of those image hosting sites, you can link to the buckett itself, and then we all traipse off and battle the scripts, or loose interest and look at something else. if you post the properly, sensibly sized pics in the thread, well, we have no excuse for not helping.


< mona, she who must be poked.
" I will say no more "

PRR

Gibson has a vintage schematic posted on their server.

www.gibson.com/Files/schematics/GA-15RVT.pdf

> where C11 is?

Hanging off V3. Which I assume is the third small bottle, in this case the middle bottle, which should be 12AU7. Find pin 8 (there may be numbers on the socket). This has a 3.3K (Org-Org-Red-silver) resistor. The other end of this resistor joins two more resistors and a capacitor. This is C11. Its other end now goes nowhere- it needs to go to the tank.

The tank itself has two ends. Are you clear about the other end?
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