It seem that BBE won't answer... I'll try to take pictures some day.

No answer so far. Honestly I don't think that questions about amp that's been discontinued decades ago will be top priority to them. Well, there's still little hope left.

Thank you very much. I emailed BBE, let's see if they have anything to say.

Hi, and thanks. There's no real problems, just a few broken potentiometer shaft. It can be used in that condition but i'm going to replace them some day. Just asking the schematics of pure interest.

Does anyone have schematics for Barcus Berry model 1720? It is 70's-80's acoustic guitar combo. i've been using it for electric guitar and it has great cleans. I've tried to email Barcus Berry but can't get any answer.

I just got cheap KMD solid state amp and tried to find some info of it. Only thing i found was old KMD brochure. It seems that nobody uses them anymore. I found the clean channel quite nice, actually so nice that i'm going to sell my tube amp (i'm mainly using clean channel now so don't need tube distortion). Does anyone here own these amps?