Recently I bought a used HP 3586B selective level meter. Overall it's in great shape. The only minor nit is that the volume control for the audio out didn't quite survive the shipment, and the small potentiometer's shaft sheared off clean with the threading on the front of the pot's body. I'm not seeing any way to adapt a knob to control it as-is, so it seems as though the best option is to replace the pot.
The pot has the following on its side:
2100-0669 CLARO
50K [ohm symbol] 19-8431 USA
I did a web search and couldn't find any relevant hits from the above.
Obviously there's no problem with finding a 50K pot (audio taper, I imagine), but the challenge will be to find one (via online shopping) that will fit the fairly tight space occupied by the old one.
So, two questions. First, is there any way using the above information to find an essentially identical pot?
If not, what is the quickest/easiest way to find a compatible-size replacement? I guess I can measure the dimensions of the old pot (diameter etc) and dig through the spec sheets for pots in online searches. Is there a faster way to do that?