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Tube Substitutions for:
7B8LM
Pentagrid Converter
TypeSubstitutesBase Diagram
7B8LM7B8, 7A8*
Notes:* - Parallel filaments
Web References7B8LM (RCA) @ Franks Electron Tubes
7B8LM @ RadioMuseum.org


Type 7B8LM
Pentagrid Converter



MECHANICAL DATA

Basing8X


ELECTRICAL DATA


HEATER CHARACTERISTICS
Heater Voltage6.3Volts
Heater Current0.3A


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