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Tube Substitutions for:
6F4
High-Frequency Triode (Acorn)
TypeSubstitutesBase Diagram
6F46L4, 6L4
Web References6F4 (RCA (HB3)) @ Franks Electron Tubes
6F4 @ RadioMuseum.org


Type 6F4
High-Frequency Triode (Acorn)



MECHANICAL DATA

Basing7BR


ELECTRICAL DATA


HEATER CHARACTERISTICS
Heater Voltage6.3Volts
Heater Current0.225A


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