7 Jan
2022
7 Jan
'22
3:37 p.m.
The terminal posts are aluminum, and can develop an
oxide
layer that prevents good contact.
Removing and replacing them might improve the contact.
I have experienced this personally with TO-3 regulators, too. I had a bunch of triple
voltage Power One linear supplies that would intermittently brownout, had to chase the
threads in the TO-3 sockets (which served as a case terminal connection) and put toothed
washers under the screws to bond the TO-3 aluminum case.
Thanks,
Jonathan