14 Sep
2006
14 Sep
'06
1:40 p.m.
Chuck Guzis wrote:
On 9/14/2006 at 12:19 PM woodelf wrote:
I have seen them used in digital applications for purposes other than driving
electro-mechanical stuff, however. Specifically, as the reset drivers in an HP
524 tube counter (resetting the string of counter flip-flops). I suspect the low
plate ('ON') resistance was the attraction/benefit.
(The 2D21 is a small tube thyratron, if anyone is wondering they're getting
singled out for attention.)
--
IIRC, Paul Pierce has one of the model of disk drive which was essentially the
RAMAC drive interfaced for use with the 7000 series.
Segment from BRL - report #1115 march 1961.
...
2D21 205
...
Most likely coil drivers for punch/printer/relays?