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Tube Substitutions for:
 RK28A
 Power Pentode
TypeSubstitutesBase Diagram
RK28A5J
Web ReferencesRK28A @ RadioMuseum.org


Type RK28A
Power Pentode


MECHANICAL DATA
Basing5J


ELECTRICAL DATA

HEATER CHARACTERISTICS
Heater Voltage10Volts
Heater Current5A


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