1980 Jmp 2203 stock?

[GuitarManTim]

I'm in the US, and I wanted to ask: when I switch the mains select to 120 volts for the American voltage, will I need to rebias anything? I apologize if that's a bit of a dumb question. Thanks again everyone!

 

[novosibir]

There are no stupid questions, only stupid answers.
Here is a not stupid answer: Don't worry. Everything is fine after switching the mains voltage. Rebiasing is not required.

 

[shar-vell Dan]

Won't hurt to check anyway they drift.

 

[Greazygeo]

I don’t run old caps in my old amps. F&T work fine for me. ARS work. Recapped this 78 2203 I picked up recently with CE brand (wanted to try them). Seem to be fine as well.