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CALIBRATOR CRYSTAL No10 , 1950's

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CALIBRATOR CRYSTAL No10 , 1950's

The Calibrator, Crystal, No. 10, was designed for the purpose of setting- up a Wireless Set No. 62 accurately on a required spot frequency. The calibrator functions as a C.W. wave meter with continuous coverage over a frequency band of 1.5 Mc/s to 10 Mc/s.

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A1474



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