Zener tester


Posted on May 17, 2012

This circuit provides a low cost and reliable method of testing zener diodes. RVl can be calibrated in volts, so that when LED 1 just lights, the voltage on pins 2 and 3 are nearly equal. Hence, the zener voltage can be read directly from the setting of RVl. The supply need only be as high a value as the zener itself


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

For a more accurate measurement, a precision pot could be added and calibrated.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

1Hz Timebase For Readout And Counter Applications
RF Amplifier circuit with 2SC1970 2N4427 Schematic Diagram
12vdc fluorescent lamp driver schematic
ir remote control tester
Power megaphone circuit
DEMODULATOR circuit
Audio Equalizer
OVER LIGHT SENSOR ALARM CIRCUIT



Top