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Conrad-johnson's Premier Four uses 2 pairs of '34s...

...per channel to achieve 100WPC. Each channel uses a 5751 gain stage and a 6FQ7/6CG7 splitter/driver. It uses c-j's 'styrene coupling caps but I imagine 'lytics in the main PS.

C-j poweramps use fuses on each channel's high-Voltage supply so the cathode resistor doesn't fry if a tube shorts, and output-tube biasing is easy with little red LEDs for each tube.

Couldn't find one just now on A'gon or eBay.


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  • Conrad-johnson's Premier Four uses 2 pairs of '34s... - jeffreybehr 10:23:16 12/14/09 (0)

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