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Tube Substitutions for:
7S7
Triode - Heptode Converter

Type	Substitutes	Base Diagram
7S7	7J7, 7J7
Web References	7S7 (RCA (HB3)) @ Franks Electron Tubes 7S7 (Tung-Sol) @ Franks Electron Tubes 7S7 (Brimar) @ Franks Electron Tubes 7S7 @ RadioMuseum.org

Type 7S7
Triode - Heptode Converter


MECHANICAL DATA

Basing

8BL

ELECTRICAL DATA

HEATER CHARACTERISTICS

Heater Voltage	6.3	Volts
Heater Current	0.3	A

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