Christie's auction and other computer history events

From: Thilo Schmidt <>
Date: Fri Feb 18 09:23:43 2005

Am Freitag, den 18.02.2005, 09:51 -0500 schrieb William Donzelli:
> > The brits did make the magnetron
> > (no small feat) but certainly, absolutely, the americans developed
> > the shit out of it!
> Perfect example. The magnetron was not invented in 1940 by Randall and
> Boot. The first was invented by Hull in a GE lab back in 1923 - a split
> anode type that actually was marketted as the FH-11. Cavity magnetrons
> follow from a bunch of people in the 1930s, although they pretty much did
> not venture outside the lab. Probably the best know is the "Split Anode
> Tank Magnetron" from RCA in 1939 - a short amount of time before Randall
> and Boot. This tube did not go far, but it was written up the the
> Proceedings. Likewise, the Japanese independently developed the cavity
> magnetron in 1940 as well.

In case anyone is interested: This is a nice resource page page about
the early radar development in europe.


Received on Fri Feb 18 2005 - 09:23:43 GMT

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