Fet-voltmeter


Posted on Aug 29, 2012

A2N3819 FETprovides a solid-state VOM. The 2N3819 acts as a cathode follower in a VOM. The bias offset (meter null) is obtained with R14 and R12 sets full-scale calibration. R2 through R9 should total about 10 MO.


Fet-voltmeter
Click here to download the full size of the above Circuit.

RlO is a protective resistor, and C2 provides ac bypassing to limit rf and noise pickup.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Lamp Fader schematic
Digital-to-analog-converters
Ua2240-staircase-generator
Inrush Current Limiter Circuit
12VDC to 220VAC Inverter Circuit Using IC 555
Digital Temperature monitor with LM5 and AT89C51
whistle responder schematics
Shadow Alarm Circuit
Emitter-Coupled LC Oscillator
network rs232



Top