Posted on Mar 5, 2013

This schematic shows a peak-reading diode voltmeter driven by two stages of amplification. A 100-ILF capacitor provides a fairly large time constant, which results in satisfactory meter damping. The limited differential output voltage coupled with an overdamped meter prevents most needle pinning when you select an incorrect range position, or make other errors. An SPST toggle switch selects additional series resistance.

Click here to download the full size of the above Circuit.

This X2 function gives some more overlap of the sensitivity ranges. The resistance values shown are correct for use with a 100-!LA meter with 1500-0 internal resistance.

Leave Comment

characters left:

New Circuits



Popular Circuits

under?-over voltage detector
0.1Hz to 10Hz RF reciever
Color-Bar Generator
Digital Pressure Gauge Circuit
DC Motor Control Circuit
Simple Light Sensor Alarm circuit with NE555
Digital Step-Km Counter Circuit Schematic
3 Band Audio Equalizer Circuit
Arduino UNO Tutorial Rotary Encoder
Class A amp circuit
interfacing rs 232 with spartan 6 fpga
13 GHz Frequency Counter Prescaler
Overvoltage protection circuit diagram
Precision tandem type power supply circuit diagram