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Tube Substitutions for:
4HS8
Sharp-Cutoff Twin Pentode
TypeSubstitutesBase Diagram
4HS84GS8, 4BU8, 4KF8, 4MK8
Web References4HS8 (RCA (HB3)) @ Franks Electron Tubes
4HS8 (Tung-Sol) @ Franks Electron Tubes
4HS8 (RCA (RC30)) @ Franks Electron Tubes
4HS8 @ RadioMuseum.org


Type 4HS8
Sharp-Cutoff Twin Pentode



MECHANICAL DATA

Basing9FG


ELECTRICAL DATA


HEATER CHARACTERISTICS
Heater Voltage4.2Volts
Heater Current0.45A


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