Contact DAKA WARE, they still make the knobs.  Will advise when next production run is, and/or vendor having them in stock.

R

On Thursday, June 26, 2025 at 02:16:21 PM EDT, Gene Smar via ARC5 <[email protected]> wrote:

Dave:

That knob looks like one from my Drake C-line. Try ePay or a Drake parts site for a knob, then see if the set screw fits.

73 de 

Gene Smar AD3F 

Sent from my Radio Shack TRS-80 model 100 laptop

On Thu, Jun 26, 2025 at 1:36 PM, Dave Merrill

<[email protected]> wrote:

Are these available anywhere? McMaster Carr has a vast inventory of set screws, none of them Bristol 6 flute that I can find. I believe they are 8 X 36 thread.

I tried posting on the R-390 reflector with no responses. I guess we add them to the 'unobtanium' list.

--... ...-- Dave N9ZC

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