15 V FOR VTVM


Posted on Feb 5, 2014

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


15 V FOR VTVM
Click here to download the full size of the above Circuit.

, Jan. 1976, p 42-43.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

76MHz to 119MHz Fm transmitter
Frequency Shift Keyer
programmer pony prog
audio tone control 2 transistor circuit
pulse width modulation
Geerts clock
High-quality ultra-linear 10W tube amp



Top