Yeah and the problem is if you use that switch you posted, it will totally bypass the tube warmup (this is the circuit now broken) and burn out the tubes faster. The best solution is to get the unit repaired. Maybe it is possible you had a power surge on return of power, which could have caused similar issue even with unit off.
Well, I'm seeing that when I plug the amp back in, it starts the warmup process. Orange status light for 30 seconds or so before it goes white. It just does this regardless of whether or not the switch is in the On position.
If the warmup still seems to be working (i.e. the tubes dont just come on immediately) then you can probably use one of those switches you linked above. The repair cost will probably be half of what you paid for the unit used, so if it seems to be warming up OK then this is probably a reasonable solution.
How long should it take during the warmup process before the tubes themselves start actually warming up?
That's what I paid last year. Worth every penny!
I did even better. I got it for $499 in May 2020 ($549 and a $50 dollar click-on discount).
It can drive the Susvara passably well, but not optimally, which is something I could say about several other amps in the LP's price ball park. I wouldn't count it among the very top-tier Susvara driving amps, but It could be useful as a temporary solution for the Susvara, as you look for a better performing alternative, which means, it can buy you some precious time if you need it.
