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.

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