http://www.marconicalling.com/museum...-i=64-s=6.html

"In Britain the Royal Navy had for some time been aware of the
importance of ultra-short wave radio for inter-ship communication and
early in the Second World War had contracted with Birmingham University
to conduct research into transmitting and receiving valves functioning
at 10 centimetres. Research conducted by two young scientists assigned
to the project, John Randall and Harry Boot, resulted in the creation of
the cavity magnetron, which was small enough to be held in one hand, yet
could produce 400 watts of power at the required 10 centimetre
wavelength, over 100 times more than the most powerful valve then in
existence, the klystron.

In August 1940, at the height of the Battle of Britain, the cavity
magnetron was taken to the USA by a small party of scientists and
service officers, led by Tizard. The Americans were so impressed that
production of the British cavity magnetron began within weeks."

I'd say the US knows a gift when they see it?

Cheers MC

Congrats, MC!!!

You just won the Nobel prize for DULLEST POST EVER ON THE INTERNET.

RB

I agree. MC's so dull that Brasso uses him for the 'before' picture.

S.Simon


"Bobsprit" wrote in message ...
Congrats, MC!!!

You just won the Nobel prize for DULLEST POST EVER ON THE INTERNET.

RB

I'd say that supports exactly what I've been saying. Given the timing, it was certainly a
huge improvement, but it was one of many necessary to create a workable system. Your link
makes it sound like they invented the cavity magnetron, which is certainly not true. And
don't forget, at this point in time, the US wasn't even in the war. We were spending
billions of dollars developing Radar to save Britain.




"The_navigator©" wrote in message
...
http://www.marconicalling.com/museum...-i=64-s=6.html

"In Britain the Royal Navy had for some time been aware of the
importance of ultra-short wave radio for inter-ship communication and
early in the Second World War had contracted with Birmingham University
to conduct research into transmitting and receiving valves functioning
at 10 centimetres. Research conducted by two young scientists assigned
to the project, John Randall and Harry Boot, resulted in the creation of
the cavity magnetron, which was small enough to be held in one hand, yet
could produce 400 watts of power at the required 10 centimetre
wavelength, over 100 times more than the most powerful valve then in
existence, the klystron.

In August 1940, at the height of the Battle of Britain, the cavity
magnetron was taken to the USA by a small party of scientists and
service officers, led by Tizard. The Americans were so impressed that
production of the British cavity magnetron began within weeks."

I'd say the US knows a gift when they see it?

Cheers MC

Bwhahahahha. Who built the first radar array? Did the US even have an
array?


Cheers MC

Jeff Morris wrote:
We were spending
billions of dollars developing Radar to save Britain.

You mean you didn't learn something not to your your liking?

Cheers MC

Bobsprit wrote:

Congrats, MC!!!

You just won the Nobel prize for DULLEST POST EVER ON THE INTERNET.

RB

How about this;

Boston 1873:

A man about forty-six years of age, giving the name of Joshua
Coppersmith, has been arrested in New York for attempting to extort
funds from ignorant and superstitious people by exhibiting a device
which he says will convey the human voice over metallic wires, so that
it will be heard by the listener at the other end. He calls the
instrument a "telephone", which is obviously intended to imitate the
word "telegraph", and win the confidence of those who know of the
success of the latter instrument without understanding the principles on
which it is based. Well-informed people know that it is impossible to
transmit the human voice over wires as may be done with dots and dashes
and signals of the Morse Code, and that were it possible to do so, the
thing would be of no practical value. The authorities who apprehended
this criminal are to be congratulated, and it is to be hoped that it may
serve as an example to other conscienceless schemers who enrich
themselves at the expense of their fellow creatures.

Cheers MC

Bobsprit wrote:

Congrats, MC!!!

You just won the Nobel prize for DULLEST POST EVER ON THE INTERNET.

RB

"Jeff Morris" jeffmo@NoSpam-sv-lokiDOTcom wrote in message
...
I'd say that supports exactly what I've been saying. Given the timing, it
was certainly a
huge improvement, but it was one of many necessary to create a workable
system. Your link
makes it sound like they invented the cavity magnetron, which is certainly
not true. And
don't forget, at this point in time, the US wasn't even in the war. We
were spending
billions of dollars developing Radar to save Britain.

I bet that you've seen a Hollywood movie about it???

Regards


Donal
--

No, I don't recall seeing one. But I did spend a lot of time in the "temporary buildings"
that housed the old RadLab - they were finally torn down a few years ago.

This reminds of the 1952 British movie "The Sound Barrier" which sort of claims that
Geoffrey de Havilland broke the sound barrier by "reversing the controls." In Chuck
Yeager's words it was "utter shuck from start to finish."





"Donal" wrote in message
...

"Jeff Morris" jeffmo@NoSpam-sv-lokiDOTcom wrote in message
...
I'd say that supports exactly what I've been saying. Given the timing, it
was certainly a
huge improvement, but it was one of many necessary to create a workable
system. Your link
makes it sound like they invented the cavity magnetron, which is certainly
not true. And
don't forget, at this point in time, the US wasn't even in the war. We
were spending
billions of dollars developing Radar to save Britain.

I bet that you've seen a Hollywood movie about it???

Regards


Donal
--

In 1940 the American technology was the equal of the British for the longer 1 meter
wavelength. But they were not deployed in the same numbers as the British.

I'm not saying the British were not major players in this field. But you implied that
Radar would not have existed without the British - this is clearly a myth!


"The_navigator©" wrote in message
...
Bwhahahahha. Who built the first radar array? Did the US even have an
array?


Cheers MC

Jeff Morris wrote:
We were spending
billions of dollars developing Radar to save Britain.