Williams Tube memory, Selectron question, and Charactron

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From: William Donzelli <aw288_at_osfn.org>
Date: Sun Aug 15 21:47:13 1999

> 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_at_osfn.org
Received on Sun Aug 15 1999 - 21:47:13 BST

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