On "octave bass" setting only , which of course is the one used. A sort of auto-wah effect at the flanger rate but with the effects controls turned to off position. Alternate peaks of a 200 Hz input signal are attenuated. Thats with the gain pot at about 60 percent but above 70 percent then a cross-over type distortion moves into the attenuated traces as well. No response to twizzle stick or ribbon connector movement,SM IC pushing etc. Not fully taken apart yet , but any ideas ?
-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on