I just got the old C21 out of the box and fired it up. The rig has not
been on the air in more than 10 years. I worked through all the
micro-phonics and dirty contact problems. Receive and transmit are now
clean and close to the original specs.
This question has probably been talked about previously on this group.
So a little direction to its solution is appreciated.
When keying I hear a loud crack or thump sound from the speaker. Any
suggestions or direction to previous info will be appreciated.
Paul K.
WA0BAG
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