HB: 38S Thumps

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Lee wrote:

> If the sidetone is being generated by logic circuits, I think you
> will find that the thump is coming from the DC shift that occurs
> as the sidetone is being turned on and off.

Good theory Lee! I too thought it might be related to this so I tried
totally disabling and disconnecting the sidetone circuit and it still
thumps. So it's not that either.

BTW, all inputs, no matter how "hairbrained" you think they are, are
very welcome! You definately are not "speaking out of turn" Lee. I'm
almost completely out of ideas myself, so any new theories will be
useful. Maybe you should get a 38S and solve the thump for us ;-)

Thanks es 72, Dave Fifield, KQ6FR

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