9 Aug
2026
9 Aug
'26
4:52 p.m.
In going through my FIL’s things I came across a box with a few hundred vacuum tubes, most just loose in the box. For reference, my FIL was a PhD electrical engineer who worked at RCA - on NASA and other projects - but also liked to build his own speakers and amplifiers. I do not have a tester and in fact my electrical knowledge starts with transistors. I don’t want to give these away - I’m sure he spent hundreds if not more on them - but I also don’t want to go through the process of packing them all for shipping. There are some monster 13cm x 5cm tubes down to smaller c. 5cm tubes. I will lay them out and take photos and try to do some ID, but does anyone have any thoughts on these - or perhaps any interest? - Bob Shuster