Please help - Hello there,
I saw that here are some people that know what they are talking about.
I have a situation... I own a guitar amp from 1978 - Roland Bolt 30 with tubes
the V1= 12AT7 - on the original schematics.. but..
when i got the amp many years ago i had a Tesla tube i don't know what kind ... than a "friend" told me that the tube was not good anymore and had changed it...
b4 the switch i had a nice edge and drive on the amp it was a little nervous and i could use... controlled feedback with my guitar and pedals...
know i have the original 12AT7 like the schematics sais...
after the switch that is possible only if i raise the volume more than i used to...
can you please tell me what should i do. can i get the original tone back?
what tube should i put on without ruining the amp in order to get that kick i used to have?
thank you for your time guys...
in advance,
Mike