Yeah, I was wondering about this too. Wouldn't both types work equally well? With a bbm switch, the gain will drop down to +6 dB as you switch, and with a mbb switch, the gain will not drop at all, just go to the next position, right? It would be a problem if the gain was somehow adjusted the other way around, with the maximum resistance giving maximum gain, then the gain would jump up top +66 dB each time you switched (using a bbm switch, that is).
What I'm saying is that once you've bypassed the electrolytics with 100nF polyesters, there's not much difference between expensive "audio" types and run-of-the-mill standard types.
Local supplier was able to order them. PM me with your e-mail address, I can provide details for ordering - likely your local electronicaboer can get them for you.I just started sourcing parts for my green pre. Everything seems quite easy to find. Exept for the three switches. I'm trying to find pushbutton switches that fit the pcb.
Has anyone had more luck with this? Or is everyone here just using rocker switches?