The twins

[marty59]

Originally Posted by ggregg

Thanks. I'll let you know. It looks like I may have to part the 621. I was told the power switch was bad on the 622 (the recapped one), but I thought that it wouldn't power off. Turns out it won't power on.

If the on-off switch is mounted to the volume pot like most you may be able to pry off the bad switch and replace it from a like unit. Or, short it out temporarly for testing purposes and replace it later. I feel safer plugging my vintage stuff into a terminal strip anyways and try to save wear and tear on those sometimes unobtanum switches.