[Amps] GS23B Plate load resistance for HF

[peter chadwick]

Assuming 3kV on the plate, 500 volts on the screen and AB1 operation in grounded cathode, I calculate a PEP output of 1540 watts, a dissipation of 1240 watts, efficiency 55% and a load resistance of 1570 ohms - calculation method as per RCA.  
Peak plate voltage when loaded is 3700 volts.

The 4CX1000A has a much bigger allowable plate swing  before the plate current curve starts to bend - which helps the efficiency.


73

Peter G3RZP