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

    Bug Detector Circuit
    High And Low Voltage Cut Off With Time Delay
    Light dimmer circuit
    Voltage-Controlled Oscillator
    Pal decoder
    V3.0 MS Build With Pics
    SH-123 ASIC holiday lights



    Top