PHOTOCELL_CHOPPER

Published:2009/7/24 2:02:00 Author:Jessie | From:SeekIC

Allows millivolt d-c voltages to be measured accurately with ordinary average-reading vtvm. Neon lamps are fired alternately by rectified 60-cps line voltage, causing Clairex photocells to alternate between low und high resistance states and thereby chop d-c input voltage being measured.-I. Queen, Chopper Adapts Voltmeter to D-C, Electronics, 38:22, p 66-67.



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