A Supa Tonebender in near mint condition, giving a very weak output signal.
Guts reveals what appears as all original.
Signal generator and a scopemeter isolated the problem to the bypass switch.
Not the typicall bypass switch construction. Note the date stamp 10 MAY 1976.
However a construction that is easy to service.
After a cleanupof the switch and the Radiohm potentiometers, the pedal is back in working condition.