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Tube Substitutions for:
RK28
Power Pentode

Type	Substitutes	Base Diagram
RK28	803	5J
Web References	RK28 (Raytheon) @ Franks Electron Tubes RK28 @ RadioMuseum.org

Type RK28
Power Pentode


MECHANICAL DATA

Basing

5J

ELECTRICAL DATA

HEATER CHARACTERISTICS

Heater Voltage	10	Volts
Heater Current	5	A

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