If you've ever worked on more than a very few Tektronix TM-500 series modules, you are well aware of the favorite epoxy dipped tantalum capacitor failure mode... very low resistance dead short... usually ending up in a charred stinky black blob. Whatever manufacturer they chose... was the wrong one.
There are wet-slug tantalum caps out there. Usually hermetically sealed military grade units. For the clock, I'd use whatever cap came to hand. I would not go out of my way to find some swoopty-do new fangled replacement. It's a Heathkit, not a space qualified doomaflotchy. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.