I rescued a nice HP 339A distortion analyzer from an e-waste bin at work, but not before another piece of equipment was dropped in an sheared off the 400Hz filter button cap, which was lost.? There is about 1/8 inch of the push-button switch post left inside, behind the front panel, and the switch stills works fine if poked with a stick, but looks bad.
Questions:
1. Is there any source for the grey cap nowadays?
2. Could a remaining button cap next to it be pulled straight off as a sample?
3. Has anyone made a new button from a sample with either epoxy in a mold or 3D printer?
4. Any other ideas for button cap repair/replacement I'm missing besides buying another 339A for parts?
Thanks.
-Bruce A., Santa Barbara
