Thanks for the schematics and the ideas.
I might give the reverb tank I have try. It's a more normal sized one, not like the little 4 inch assembly they house inside the chassis, so of it works, I'll have to mount it probably on the floor of the cabinet. Both amps seem to have plenty of recovery gain in the reverb circuit, too much, really, in my opinion, with the stock spring unit. So the 600/600 ohm tank might be fine.
That stock foam reverb mount is a regrettable choice, and that they both had failed completely is a heads up for anyone who might come across one of these little amps, of things to watch out for. The one that was loose, but functional, was remounted by cutting some of that open cell eggshell-cut cushioning foam that came from a test equipment case. I cut a cavity for the reverb assembly in a piece of foam, whole whole thing large enough to get securely wedged in the closed chassis, where the unit is suspended within the foam. Seems to work quite well.
I think I'll leave that two prong power cord alone. It isn't causing a problem, leave well enough alone.
I might give the reverb tank I have try. It's a more normal sized one, not like the little 4 inch assembly they house inside the chassis, so of it works, I'll have to mount it probably on the floor of the cabinet. Both amps seem to have plenty of recovery gain in the reverb circuit, too much, really, in my opinion, with the stock spring unit. So the 600/600 ohm tank might be fine.
That stock foam reverb mount is a regrettable choice, and that they both had failed completely is a heads up for anyone who might come across one of these little amps, of things to watch out for. The one that was loose, but functional, was remounted by cutting some of that open cell eggshell-cut cushioning foam that came from a test equipment case. I cut a cavity for the reverb assembly in a piece of foam, whole whole thing large enough to get securely wedged in the closed chassis, where the unit is suspended within the foam. Seems to work quite well.
I think I'll leave that two prong power cord alone. It isn't causing a problem, leave well enough alone.