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VTNBK 5/702
TRIODE
VTNBK 5/702

TRIODE

Dateafter 1931
Inventory NumberVT0422
ClassificationVacuum Tube
Place of OriginNew York, New York
DescriptionIf heater-cathode voltage exceeded 30 V RCA 1603 was recommended instead.
FunctionReceiving Triode used as an AF amplifier where low tube noise was required. Designed to minimize hum produced by AC operation of the heater and to minimize microphonic noise. Manufacture discontinued 1938
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