Recent content by guitarman1860

that's 98% similar, except in the v6 neighbourhood. And that's right there where the damage was done. There are some resistors in different positions and also a diode crossing over a piggyback 120 k chinese-made resistor. It is hard to see (and to take a photo) because it is beside the 2 orange...

Hey guys i have just found out that some technician changed some resistors and maybe added a diode in my DC3. I need help to change it back. There are several versions of the board. I need the DC23B, 1993 version. It's very different from the others design and there are also some variations...

o Pedrone foi o primeiro cara a mexer no ampli e não achou nada, foi aí que vi que o negócio era complicado estive fora de sp desde o natal, somente agora estou voltando à normalidade e acabei de ler sua mensagem obrigado por responder vou dar uma mexida no ampli aqui e depois te aviso...pode...

By standard I mean factory setting. The -11 is way too hot for modern valves - better around -14v. Look for a post called DC-3 issue on May 23 2013, Bendo's advice on the piggy back resistor mod is recommended unless you want to keep replacing valves regularly. Even cold JJ's don't live long and...

Pilotltd, when you say “standard” you mean the standard values for specifically these early Dc3s or the standard for all Dc3s in general ? I once read a great debate here in the forum about biasing an early DC3 but could not find it anymore. It must be in some other topic. Bendo, thanks...

Hey guys I have just arrived in the forum and need your help. I have a Mesa DC-3, with the 1993 board and Black Shadow speaker. I live in Brazil and down here there is neither Mesa dealers nor authorized service. So this forum is my last hope to fix my problem. My original El84 power tubes...