transistor tester circuit


Posted on Feb 6, 2014

This is a very simple transistor tester circuit the circuit can be used to test NPN and PNP transistors. The voltage source is a 6V power supply which is 230V AC to 6V step down transformer. It is essential to put the transistor leads in right direction like transistor emitter to circuit emitter where (E) is marked transistor base to circuit base


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

marked (B) and transistor collector to circuit collector marked (C). The switch S1 is a rotary switch to choose a correct base resistor for under test transistor. The green LED will glow when an under test NPN transistor is working correctly and red LED will glow when an under test PNP transistor is working correctly.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Low-pass filter
    20W-audio-amplifier
    Child-Proof Reset Switch
    Audio-Frequency Meter Circuit
    6V6 6J5 Class A Vacuum Tube (Valve) Amplifier Circuit
    bi directional level shifter
    813 SE triode amps



    Top