DX-100 concentric knob substitute ?

[Ken Dupuis Wn2Sqc]

Hi. I did this mod on my DX-100's grid control about 25 years ago. I used
a cheap CALRAD vernier that mounted with one number 40 screw, worked
perfect. The beauty was that removing the vernier allowed installation of
the original Heath knob and no one could tell. The original heath grid
control was vey touchy to adjust on the higher bands. Ken

On Sat, 29 Dec 2001 11:51:09 -0800 Glen Zook <gzook at YAHOO.COM> writes:
> Back in the 1960s, there were numerous articles in the
> amateur radio magazines on using the "cheap" Japanese
> manufacture verniers on the DX-100 and DX-100B.
> Basically you pulled the knob and dial off of the
> vernier and then mounted it to the panel using three
> machine screws or sheet metal screws.  Then, you put
> on whatever knob (usually much larger than the
> original) on the vernier.
>
> Supposedly, that worked very well.  However, I have
> not done this modification.
>
> Also, I have used the knobs from old Tektronics
> oscilloscope plug-ins for concentric knobs.
>
> Glen, K9STH
>
>

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