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Old November 20th 14, 08:40 PM posted to rec.radio.amateur.homebrew
gareth gareth is offline
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First recorded activity by RadioBanter: Sep 2012
Posts: 1,382
Default Transistor output stages?

One question; why the predominance of a multitude of bandpass
filters on the output of TXs? Why not a tuned circuit, along the
lines of valve PA stages, once the impedance level were to be raised?