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Classic gear from yesteryear; vintage audio standing the test of time.


One of the coupling caps and the cathode bypass where bad. Replaced the coupling caps with Russian PIO's, replaced the pf caps with silver mica's, matched inverter resistors added and dropped in a 200ohm cathode resistor in place of the 120ohm.

Voltages are close to spec and it sounds very smooth with a tighter and fuller bottom end than my 30-A. Power transformer runs cooler too. P/S filter caps are next.

Thanks for all the the tips!

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  • Update - Qman 09/23/1311:14:35 09/23/13 (1)


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