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Tube Substitutions for:
7A4
Medium Mu Triode

Type	Substitutes	Base Diagram
7A4	XXL
Web References	7A4 (Sylvania) @ Franks Electron Tubes 7A4 (Tung-Sol) @ Franks Electron Tubes 7A4 (Sylvania) @ Franks Electron Tubes 7A4 @ RadioMuseum.org

Type 7A4
Medium Mu Triode


MECHANICAL DATA

Basing

5AC

ELECTRICAL DATA

HEATER CHARACTERISTICS

Heater Voltage	6.3	Volts
Heater Current	0.3	A

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