Simple Transistor Tester Series

The circuit shown below is a series of simple transistor tester. In some digital and analog avometer now mostly been contained this feature, but it can not hurt us a little more creative.
Basically this circuit transistor tester is a simple amplifier equipped with a feedback / feedback that could cause the LED lamp shown in the image blink. How often does this LED blinks depending on the value osilatornya, in this case is a combination of resistors and capacitors 330Kohm / 10uF elco.

This circuit uses 3volt supply consisting of 2 batteries and of course we can replace it with a small power supply.
How it works itself is very simple, the logic circuit only works when both transistors are used worked well. Therefore we can take advantage of it by using a small homemade socket instead of pairs of transistors that can be dismantled easily.

Not only serves to know the pros and cons of transistors, this circuit can also detect an of whether that type of NPN transistor / PNP. Living off only one transistor and transistor pairs that we wish to test, if the LED lights up then the second transistor is going well. For peer to peer technicians who are interested to make it, I also include an image has become. Hopefully this article useful simple transistor tester.

Original Content : infoservicetv 
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