The RK-31 is a 40 watt triode with a mu of 75 and a maximum usable frequency of 30 MHz for full output. Made by Raytheon. Length = 8.25" Diameter = 2.06" Max voltage = 1250 Max current = 100 ma Fil voltage = 7.5 Fil current = 3 amps GOTO INDEX
The RK-31 is a 40 watt triode with a mu of 75 and a maximum usable frequency of 30 MHz for full output. Made by Raytheon.