. The Bell System technical journal . and to make the neces-sary external magnets feasible. Generally, the design of the mechanical features of a device as complicatedas the multiresonator magnetron oscillator is extremely important and mustprovide for structural strength under a variety of conditions, as well ascooling facilities and external protection of relatively fragile parts. 270 BELL SYSTEM TECHNICAL JOURNAL 12. Reproduction of the British Magnetron The problem undertaken at the Bell Telephone Laborator;es immediatelyafter the visit of the British delegation in October 1940 was the rep


. The Bell System technical journal . and to make the neces-sary external magnets feasible. Generally, the design of the mechanical features of a device as complicatedas the multiresonator magnetron oscillator is extremely important and mustprovide for structural strength under a variety of conditions, as well ascooling facilities and external protection of relatively fragile parts. 270 BELL SYSTEM TECHNICAL JOURNAL 12. Reproduction of the British Magnetron The problem undertaken at the Bell Telephone Laborator;es immediatelyafter the visit of the British delegation in October 1940 was the reproductionof the 10 cm. magnetron for study and for general radar use at the Bell Labo-ratories and the Radiation Laboratory at the Massachusetts Institute ofTechnolog>^ The data available were contained in a drawing of a magne-tron having six resonators and in an X-ray photograph of the magnetronused in the demonstration at the Whippany Laboratory, described in theIntroduction. The X-ray photograph, reproduced in Fig. 45, showed a.


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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1