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Author Topic: ACP4 valves, looking for project  (Read 1496 times)
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PA0NVD
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Nico and Chappie (Chappie is the dog...)
« on: February 15, 2016, 01:39:58 PM »
I just got two ACP4 valves, indirect heated triodes from approx 1937, in good condition and nicely matched. It are quite rare power output triodes with the anode at the top and a 5 pin European socket. At 200 Volts and zero G1, 55 and 57 mA, at -5VDC G1, both 15 mA.
Any ideas for a nice project for these valves?
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