[ARC5] Japanese technology

[J. Forster]

>     Radar technology was based on triode tube oscillators until the
> British
> developed the multicavity magnetron.
> Once they got a working model they brought it to the US and in
> collaboration with the US the first modern
> radar was developed.

The prototype was brought to Percy Spencer at Raytheon, who figured out
how to turn a machining nightmare of hogging out a copper block, into
furnace brazing a stack of diecut plates. This made the strappingt far
better and vastly increased the output power.

> I talked with Norman Ramsey about 30 years ago about
> this. He was involved in the
> development of the "modern" radar when the prototype magnetron was
> delivered.
> He died in November last year. A  few years after meeting  him he go t
the Nobel Prize for developing the first atomic clock.
> 73
> bill wa4lav

Norman Ramsey was one of the Great Men of modern physics, along with Ed
Purcell and Bob Pound. Sadly, outside of the scientific community, they
are all but unknown.

-John

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