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WAD Problems For questions and answers re older World Audio Design Projects |
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Re: I've had a bad day!!!...please help!
Hi Gerry,
This thread got a little highjacked and confused so will try to make some sense of it. If you have 0V dc or ac across the heater pins 3&4 of the 6AU6 I guess the wires to the heater pins may be broken somewhere or there is a fault in the bridge rectifier circuit that feeds the 6AU6. Can you see the heater glowing on the "faulty" amp if not then you need to investigate the wiring/bridge rectifier especially if the 5687 heaters are glowing. Regards John aka Dr John |