Tuesday, May 28, 2013

Transistor tester circuit

This is a simple circuit to test transistors.I think you can simply fix this.Hfe as high as 1000 can be measured by using this circuit.The POT R4 can be adjusted to get a constant current of 10uA.


# J1 and J2 are transistor sockets.
# The Zener diodes must be rated at least 400mW.


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