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Tube Substitutions for:
6678
Medium-Mu Triode - Sharp-Cutoff Pentode
TypeSubstitutesBase Diagram
66786U8A
Web References6678 (RCA (HB3)) @ Franks Electron Tubes
6678 (Sylvania) @ Franks Electron Tubes
6678 @ RadioMuseum.org


Type 6678
Medium-Mu Triode - Sharp-Cutoff Pentode



MECHANICAL DATA

Basing9AE


ELECTRICAL DATA


HEATER CHARACTERISTICS
Heater Voltage6.3Volts
Heater Current0.45A


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