AMROH DUETTE 10W STEREO AMPLIFIER SM Service Manual download, schematics, eeprom, repair info for electronics experts
6BQ5 / EL-84 Vacuum Tube Amplifier Review | This is my last EL84 PP amplifier, I confess I am not the biggest fan of this valve, but I have built a lot
6BQ5 / EL-84 Vacuum Tube Amplifier Review | This is my last EL84 PP amplifier, I confess I am not the biggest fan of this valve, but I have built a lot