New to me GA-15 RVT day...

I'm looking for a Reverb tank for it. Don't really want a long two spring, would rather have a short 3 spring but can't seem to find one that meets the specs. I've found a few things that appear to be modded/changed and going to try and get it pretty much back to original'ish for starters. Put it off to the side for a bit to finish up the cordovox 2x12 power amp and single 10 leslie cab (well, besides I'd like to have a reverb tank before doing much more)...
 
Got it up and running and back together.
The crackling was coming from the interstage transformer, which I replaced.
I converted the reverb from transformer driven to cathode driven and used a short three spring tank for it.
Re-did did the tone stack to the original '65 tone stack.
Replaced all the cathode bypass caps.
Replaced the all the tube sockets.
Replaced a few resistors that weren't stock values.
Added an artificial center tap for the heaters.
Twisted the heater wires and ran them out of the way.
I think that's it, for the most part anyways...
Oh, I'm now searching for a screen of some sort about 4" x 12" to use on the back plate...

I post some more pics, but things really don't look that different.
I may post a schematic show how it sits at the moment, see what happens...
 
Here is a schematic I whipped up for this amp that shows what I've done to it. I'm pretty sure it's correct, but use it at you own risk.

Also, there was no reverb can when I got this. I used a Mod 8FB2C1B and converted it to 8FB2A1B. It easy to do with the Mod cans.
 

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I have a 1997 Accutronics 3 spring long tank...could it work for you???

Thanks for the offer Robert, but the head doesn't have enough room/space for a long tank. I went with the MOD short 3 spring tank, which has a lot of lush reverb but still has a some of that boing'y'ness to it. MOD didn't have the exact input/output (ground/shield) setup I needed, but they use a little circuit board for each and it's a simple matter of removing a solder blob or adding a solder blob to convert them to what you need (as far as the ground/shielded part goes).
 
5th character = Connector arrangement
A = input grounded, output grounded
B = input grounded, output insulated
C = input insulated, output grounded
D = input insulated, output insulated
 
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