>
>>This (VHF) ringing occurs whenever there
>>is a transient in anode-current. I contend that RF input contact arcing
>>(hotswitching) during relay closure will produce transients in
>>anode-current -- and that the resultant ringing in the anode circuit will
>>be fed back by the feedback C of the amplifier tube. .
>
>HOW?
? Very much like a hammer (the transient) striking a bell (the resonant
circuit). This is how spark transmitters worked in days of yore.
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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