To complement the previous post here we present voltmeter circuit based on a FET. This FET Volt Meter replaces the function of the VTVM while at the same time ridding the instrument of the usual line cord.
Archives for the ‘Schematic Diagrams’ Category
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FET VOLTMETER
Amperemeter (AM-METER)
This ammeter circuit would be a simple project for you. It may be a little help when your ampermeter damaged or simply to learn how ammeters work.
Zener diode tester
The following circuit will complete your component tester tool collection. The circuit offers a inexpensive and reliable way of testing zener diodes. In order to work, this zener tester requires 30 VDC.
A D V E R T I S E M E N T