[Milsurplus] Radar

[J. Forster]

I think the Klystron was a US invention (Varian) but the Magnetron came
over w/ the Tizzard Mission, for certain.

It was given to Raytheon and improved by Percy Spencer to be far easier to
produce. The original was hogges out of a solid copper block. Spencer
worked out a way to make it by stacking up stampings with interspaced
layers of solder preforms, then furnace brazing the whole assembly.

-John

==================



> Is it true that the Klystron tube was provided by Britain to the US in
> exchange for some Lend/Lease materiel?
>
>
> On 05/28/2013 19:00, Nick England wrote:
>> "RDF" was adopted for British Commonwealth use in 1935. It was replaced
>> by "radar" in 1943. Reference "Britain's Shield" by David Zimmerman
>> (which I am currently reading, otherwise I wouldnt have found the answer
>> so quickly). So it depends on when the Foyle's War episode was set.
>>
>
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