Transistor Tester

229

04:22:19

This is basically a high gain amplifier
with feedback that causes the LED to flash at a rate determined by the 10u and 330k resistor. Remove one of the transistors and insert the unknown transistor. When it is NPN with the pins, the LED will flash.

published 8 years ago

lenzrulz

8 years ago

This is something similar: http://everycircuit.com/circuit/5487071525339136

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