Hi,
you should beg, borrow, steal, or perhaps even buy (!) a book by Robert Buderi "The INVENTION that changed the world - The story of radar from war to peace" first published in the USA by Simon Schuster 1996, my copy published in Great Britain by Little, Brown & Company 1997. ISBN 0 316 90715 4
The writer was sponsored by the Alfred P Sloan Foundation, and is a history of the Radiation Lab at MIT during WW2 and afterwards. Naturally it includes a lot of the British developments in the lead up to WW2. The semiconductor diodes used as sensitive detectors in the radar receivers were developed at Bell Labs, and were further developed into the transistor, and the rest is history, as they say. The British developed the magnetron which could provide very large powers at centrimetric wavelengths, and together the co-developed radar system had an excellent performance. And post war there was a frantic effort to get an early warning system across the north of America and Canada, the DEW line, for which IBM received a contract to develop the first computers for tracking multiple targets, and for which they developed magnetic core memory, and got a head start into computing.
Anyway, if Amazon or Ebay don't have it, you may be able to get it on an inter library loan. It is a very interesting book!
best regards
David