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:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Variable charger circuit Schematic Diagram
    Fluorescent Tube Basics Schematic Diagram
    led tube light using transformer
    L298N Motor Driver Board Stepper Motor DC Motor Drive
    5.3W Amplifier With Surround System
    IMPROVED TV COLOR WHEEL CONVERTER
    Electronic Voltmeters
    Flashing warning light produced by light control NE555 circuit



    Top