I've asked around other DIY sites about this amp with no replies. Does anyone here have any info on this amp? I have one, and while in operationing condition it seems to go unstable when the gain set turned to max. I had to replace some copmponents in it and it is probably in need of bais adjustments but there are 4 pots in each channel and I haven't a clue as to what the settings should be or where they should be measured. Anyone have a schematic or other useful info? The amp is circa 1978, designed by Peter Canalloppolus (sp???) out of Rockville Maryland.