Quick On-Board Junction Tester

Posted on Feb 5, 2014

Short circuits or broken pcb tracks can be easily recognized by means of a Multimeter, but this tool can give wrong results when testing the efficiency of a transistor or diode, unless the device under test is unsoldered and removed from the pcb. A further shortcoming affecting such way of testing is the necessity to keep firmly the probes on the pins of the device under test and at the same time to turn the head continually to read the Multimeter display

Quick On-Board Junction Tester
Click here to download the full size of the above Circuit.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    DTMF Phone Dialer with PIC16F690 and NTE1690
    Microcomputer-To-Triac Interface Circuit
    Frequency Divider For Measurements Circuit
    Simple Electromagnetic Field Detector Schematic
    Contactless air range finding method on the basis of P89LPC932
    voltage What kind of Mic do I need to connect to a pots telephone line to speak
    4x3 4x4 Matrix Keypad Interface with Atmel AVR Microcontrollers
    Emergency Light and Alarm
    Brush 6 channel camera power supply circuit MAX1566-1567