This exhibit has lost its base down the years, but the envelope is still intact.The device is a bolometer or a thermocouple. Such devices would have been used to measure the mean power of a non sinusoidal signal. This would have been the heart of an RF power meter.The balloon envelope is 60 mm in diameter and the overall length is 120 mm.Reference: Observation. |
Updated October 01, 2013.
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