On Mon,7/27/2015 4:57 PM, Tom Azlin W7SUA wrote:
In all the old handbooks the discussion of amplifier design says ( page 76, 1941) "In amateur transmitters, and r.f. amplifier is invariably operated Class C ( see Chaptr 3)." I though the final tuned circuit was simply "pulsed" at the RF freq and then the output filtering knocked off harmonics leaving a clean CW note.
Yes and no. Yes, the tank of a class C amp is pulsed and the output network kills the harmonics. But it does NOT kill the intermodulation distortion that is produced by the non-linearity, and that intermod is heard as clicks.
BTW -- you need a MUCH newer Handbook. :) 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
