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Extra info for AN 08-10-112 BC-348-J,N,Q Radio Receiver (maintenance)

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Some field testing was done, but after the German invasion in May 1940, the project came to a halt. It was secretly continued within Philips NatLab until 1942. During the Second World War, Philips was placed under German supervision of two ‘Verwalter’ (administrators), Dr. O. J. Merkel. This ‘supervision’, however, was little more than a formality, as Bormann and Merkel were already familiar business partners of Philips before the war. The Germans required large quantities of transmitter and receiver equipment for their army and forced Philips to supply this equipment.

About thirty or forty members of the post-war Cavendish team were there, including Martin Ryle. At the end of the lecture, Ryle rose quickly to his feet and assured the audience that on two counts I was dead wrong: the solar temperature could not possibly be a million degrees, and there was something very wrong about (…) [the] observation of circular polarization. It was some time before they were to change their minds! (Bowen 1984, 89) From that point on, Bowen suspected Ryle12 of striving to undermine the reputation of the Australian group, and the tension between the two groups increased over time (Buderi 1996, 284).

The Würzburg dishes play a very important role in the history of radio astronomy. As will be explained, Würzburg precision reflectors were used extensively by a number of radio astronomy groups for a decade after the war. In the Netherlands, groundbreaking research has been done with one of these reflectors. The Würzburg dishes were one of the most well-constructed and reliable radar antennas during the war. Although the standard wartime operating wavelength was 54 cm, the Würzburg could operate at wavelengths as short as 10 cm.

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AN 08-10-112 BC-348-J,N,Q Radio Receiver (maintenance)

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