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Tube Substitutions for:
3FW7
Medium Mu Dual Triode

Type	Substitutes	Base Diagram
3FW7	3FX7	8LM
Web References	3FW7 (Toshiba) @ Franks Electron Tubes 3FW7 @ RadioMuseum.org

Type 3FW7
Medium Mu Dual Triode


MECHANICAL DATA

Basing

8LM

ELECTRICAL DATA

HEATER CHARACTERISTICS

Heater Voltage	3.5	Volts
Heater Current	0.60	A

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