How to check Unijunction Transistor (Ujt)

Examining this type of transistors is very easy when you follow the following steps:



1- Put the status of digital Mmeltamitr to read ohms and the resistance between Base1 and Base2 to put (+) on the first base and (-) on the second base. Then reflect the polar, probably in both cases, the resistance will be equal high.


2- Put the wire (-) on the Emitter and from wire (+) Calculate the resistance between the Emitter and Base1, and the resistance between the Emitter and Base2. Both readings will mark on high value and equal to the resistance.


3- Flip the wire (-) to the Emitter (+). And now from the wire (-) Calculate the resistance between the Emitter and Base1, and the resistance between the Emitter and Base2. Both readings will mark on small value and equal to the resistance.

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