William Donzelli wrote in message
om...
(Tom Bruhns) wrote in message
om...

Lots of discussion about using the 829 for VHF power amplifiers, and
even audio amplifiers and conversation pieces. But I haven't seen
mention here of their use in pulse generators.

Or CRT drivers (in the AN/APS-44 aircraft radar, and I think some of
the Navy PPI repeaters).

Perhaps someone knows: was the 3E29 an 829 re-designed and/or
specifically tested for use in pulsers?

Probably. 3E29 was used in the Mk III IFF interogators, circa 1943. I
don't know of any other major uses for the 3E29 (AKA 829A). Real 3E29s
are getting quite scarce, but 829Bs still can be found in biblical
quantities.

What was the 829 originally
intended for, and when was it first introduced? Who made the first
ones, RCA or someone else?

1943, probably RCA, although National Union was apparently an early
second source. 832 was the model for the 829.

William Donzelli

I've seen references to the fact that the 829B was used in MIT's Whirlwind
computer as core memory drivers, definitely a pulse application. I don't
have any documentation on that, but I do remember some dual plate 829B-like
tubes in the Whirlwind fragments that used to be on display at the
now-defunct Boston Computer Museum. They could have been 3E29s, though, or
even 832s.

The Univac I used 829Bs, as documented here (5/8ths of the way down the
page):
http://ed-thelen.org/comp-hist/BRL61-u3.html

With that complement of tubes you could make one heck of an all-modes
transceiver!