Home  Resources  References  Tubes  Forums  Links  Support  Sale 

Tube Substitutions for:
RK20
Power Pentode

Type	Substitutes	Base Diagram
RK20		5J
Web References	RK20 (Raytheon) @ Franks Electron Tubes RK20 @ RadioMuseum.org

Type RK20
Power Pentode


MECHANICAL DATA

Basing

5J

ELECTRICAL DATA

HEATER CHARACTERISTICS

Heater Voltage	7.5	Volts
Heater Current	3	A

© 1996-2021 Nostalgia Air