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

<r390a.urr@gmail.com> 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

______________________________________________________________
ARC5 mailing list
Home: http://mailman.qth.net/mailman/listinfo/arc5
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:ARC5@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: https://www.qsl.net/donate.html