[Amps] RCA load impedance calculation

Peter Chadwick g3rzp at g3rzp.wanadoo.co.uk
Tue Apr 11 03:46:44 EDT 2006


Isn't the load impedance Rl = Vs*2/2Po
Vs*2 is the peak to peak anode voltage swing squared
Po is the  max output power

Interestingly, if you look at the anode ac resistance curves and figure the efficiency, you start seeing how close you get to a conjugate match. At 50% efficiency overall, you do have a conjugate match.

But I don't want to start that hare again!
73
Peter G3RZP


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