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Tube Substitutions for:
3C28
Power Triode

Type	Substitutes	Base Diagram
3C28		F31
Web References	3C28 (LewisElectronics) @ Franks Electron Tubes 3C28 @ RadioMuseum.org

Type 3C28
Power Triode


MECHANICAL DATA

Basing

F31

ELECTRICAL DATA

HEATER CHARACTERISTICS

Heater Voltage	6.3	Volts
Heater Current	3	A

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