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Tube Substitutions for:
 6677
 Power Pentode
TypeSubstitutesBase Diagram
66776CL69BY
Web References6677 (RCA (HB3)) @ Franks Electron Tubes
6677 (Sylvania) @ Franks Electron Tubes
6677 @ RadioMuseum.org


Type 6677
Power Pentode


MECHANICAL DATA
Basing9BY


ELECTRICAL DATA

HEATER CHARACTERISTICS
Heater Voltage6.3Volts
Heater Current0.65A


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