Quote:
Originally Posted by Nickthedentist
Edward, in your experience, is it mainly the two TO-3 output transistors which fails in these amps, or will there typically be other faults which have caused them to die?
Nick.
|
The Pye 1004 was the very first UK volume produced record player using a medium powered (c. 6 watts) transistor germanium AF amplifier. Launched in late 1963, surviving examples are now 55+ years old and need treating with some respect. The output pair are the usual suspects and accurate voltage measurement over the circuit is recommended. There were some circuit and loudspeaker changes made over its 15 month production life.