The RK-28A is a 100 watt dissipation pentode made by Raytheon with full ratings to 30 MHz. This replaces the RK-28 which has a different envelope, metal anode and a larger plate cap structure.
Length = 8.63" Diameter = 2.37"
Max voltage = 2000
Max current = 150 ma
Fil voltage = 10
Fil current = 5 amp GOTO INDEX