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Re: Grommes LJ-6 Buzzing

Posted by AstroSonic (A) on November 15, 2006 at 06:53:39

In Reply to: Grommes LJ-6 Buzzing posted by AstroSonic on November 12, 2006 at 20:34:08:

Thanks guys,

There was a bad cap section and so will have to replace all 4 sections. I am just going to replace all of the electrolytics. This circuit has a number of clever, cost saving 'innovations'. The power supply is also partially blended in with the amplifier circuitry. This one has the dual use feedback resistor/cathode bias resistor, and the heater voltage boost via the output stage cathode bias resistor. What was that Chinese curse? Something like 'may you work on interesting amplifiers'.

Regards,

Bob

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