Christie's auction and other computer history events

From: Tom Jennings <>
Date: Fri Feb 18 16:29:54 2005

On Fri, 18 Feb 2005, Paul Koning wrote:

> Brad> As I recall they benefited greatly from a British magnetron
> Brad> design, however (centimeter wavelength).
> Remember that early radar was VHF/UHF, not microwave.

Sorry for being unclear, I think the implication for this radar
discussion was aircraft-mounted, which was (nearly) all microwave.
10cm then 3cm, then shorter, etc. The 28 MHz stuff ("chain home")
wasn't portable (to say the least :-)

THAT I believe was first completely implemented in england. ANd
here's a good example of the blurriness of invention. "British
invented radar" (chain home). True! But they can't (and don't)
claim transmitters, receivers, antennae, detectors, etc etc that
it's all built from. Radio junk.
Received on Fri Feb 18 2005 - 16:29:54 GMT

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