The CK-70 is a 40 watt dissipation pentode with a maximum frequency of 30 MHz for full output. This tube is supposed to be the same as the RK-20A which was an improved RK-20.
Length = 8.50" Diameter = 1.88"
Max voltage = 1250
Max current = 92 ma
Fil voltage = 7.5
Fil current = 3.25 amps GOTO INDEX