audioguru2
- Apr 6, 2004
- 12,026
- Joined
- Apr 6, 2004
- Messages
- 12,026
I think you posted the voltages at the pins of the dual opamp.
Its Pin 1 has a very high AC output voltage and the 2nd opamp and transistors should rectify it and amplify it but they don't.
Check C4 (330nF which is 0.33uF), R9 (56k) and R8 100k). Check that the emitter of one of the transistors isn't shorted to ground.
Its Pin 1 has a very high AC output voltage and the 2nd opamp and transistors should rectify it and amplify it but they don't.
Check C4 (330nF which is 0.33uF), R9 (56k) and R8 100k). Check that the emitter of one of the transistors isn't shorted to ground.
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