Re: Gould 4072 bad PSU
There are several things about which I'm puzzled. Referring the the enlarged circuit diagram I posted earlier (post 11):
The -VE rail of the pre-regulator is connected to the -VE of the input bridge rectifier at PLD1,2. There is a note on the drawing that "These points have high potentials relative to each other and to mains earth" with asterisks to indicate the pre-regulator -VE and the main regulator -VE rails. However, at PLD9,10 (upper part of the circuit diagram) there is a connection that goes between the main regulator -VE and the connection to L1, where there is also a connection to the pre-regulator -VE via PLD11. Is this a drawing error or have I missed something?
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Richard
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recursive loop: see recursive loop
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