15_V_FOR_VTVM

Published:2009/7/12 22:33:00 Author:May | From:SeekIC

Simple rectifier circuit replaces battery in vacuum-tube voltmeter. Provides good regulation and eliminates need for frequent battery replacement. Remove battery before using supply. AC source can be 6.3-V secondary of filament transformer or terminals of 6.3-V pilot lamp in any AC equipment.-P. Alexander, Battery Replacement Circuit for VTVM, QST, Jan. 1976, p 42-43.



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