Tube Amp Archive

Hey thanks! ik will keep them like that. these are still the original tubes I think. readjustment will be necessary when new ones are inserted.

Hi all, the schematic shown above is not the one my M40 used. I was confused as well. mine uses this one: https://music-electronics-forum.com/filedata/fetch?id=837523&d=1430776839 please note the four bias resistors with the separate diode feeding them. klemt was smart enough to give every cathode a...

Hi All, As my first post I would like to introduce myself. I'm Simon From Arnhem, The netherlands and working with electronics for about 35 years. first only tube electronics and after that digital circuits. But now, after 20 years without tinkering with tube circuits actively, I have the restoratio...