15 Aug
1999
15 Aug
'99
2:47 p.m.
Lest we for get the 2d21 tyratron and the larger
cousins. Cold cathode
triodes mostly replaced with SCRs.
I am in favor of forgetting 2D21s. I have a bunch NIB and can drag them
to every hamfest in the world, yet never sell one.
2D21/5727, fresh from the factory!
2 for a buck!
William Donzelli
aw288(a)osfn.org