Hi,
Many discusstion about this question, thanks everyone!
Many years ago , some AF power amplifier uesd 811A in push-pull, worked
in Class B or Class AB2,
I think we can use similar design in RF amplifier, add a wide band HV RF
transformer to change the push-pull output to single end output, so we can use
same Pi network as same as single end 811A GG amplifier,even we can useing RF
transformer reduce the output impedance, so we can use inexpensive low volt
air capacitor(reciving caps).simple input net work, withou screen and grid PS,
cheap out put Pi network,it seems very perfect amplifier!
73! Hsu
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