This large, hard-to-find power tetrode is shown in its original socketing, complete with bypass capacitors ( seen at the top ). The tube is rated at 400 W plate dissipation max, plate input 1200 W max, and 350 ma max DC plate current. The filament requires 11 volts at 10 amps. It's overall length is 17 and 7/32 inches.
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