o rings do the job

[GERry]

> ... some slop in the main tuning knob. how do
> you get it off? no set screws.

I had a HW-100 years ago.

Many complained that the dial drive mechanism suffered from
wobble and backlash.  (I was lucky, mine didn't.)  As I
recall, consesnsus was that you "had it or you didn't" and I
don't recall a way to get rid of it.

73 de W3GERry

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