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Radio Proximity Fuse

abn deuce

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One of my first jobs was working on semiconductor replacements for valve shell and bomb fuzes. Despite the apparent ruggedness of solid state devices it was a long time before they were made as tough as the special valves that had been developed for this application. The problem was mostly that although the semiconductors were rugged, their packaging and internal wiring would not stand the acceleration of a shell firing - as the film said, around 20000g! It was a very educational and sometimes exciting experience to test them!

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