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Insert the probes into the multimeter. The black probe goes into the common terminal and the red probe goes into the terminal marked for testing diodes. 3. Replace the probe tips with alligator clamps. HOW TO TEST YOUR TRANSISTORS WITH YOUR MULTIMETERS: Hello everyone!! In this your multimeters. Now, forget those circuits used for testing transistors and now its time to get easy and practical. Great tutorial thanks! I just open18 Nov 2016 Learnabout-Electronics - Transistor Testing With a Multimeter. How to The diode range (or whatever range the meter instruction book suggests for testing the Step by step instructions: Set the meter to its ohms range - any range should do, but the middle ohms range if several are available is probably best. Connect the base terminal of the transistor to the terminal marked positive (usually coloured red) on the multimeter. 4 May 2017 Hook the positive lead from the multimeter to the to the BASE (B) of the transistor. Hook the negative meter lead to the EMITTER (E) of the transistor. For an good NPN transistor, the meter should show a voltage drop between 0.45V and 0.9V. If you are testing PNP transistor, you should see “OL” (Over Limit). DC(. ) hFE. Transistor. Laser Pointer. IR-T. Infrared Temperature. Emissivity ?=0.95 in or otherwise, the meter will make no response because no (With Thermo-Resistor). 4.12.1 This to choose the auto range or manual range mode. 24 Apr 2017 If you're not experienced working with transistors or a voltage meter, use a multimeter's user manual if you can't locate the diode test function. How to test a Transistor using Multimeter? Tutorial to learn transistor testing using a multimeter with the help of images and step by step details.. 4 Jan 2016