Transistor Cheker

Introduction :

This is an Electronic Projects section. You can find out simple, hobby, little complicated electronic projects on this section. You only need basic knowledge to make this projects. You can also ready made Projects and DIY kits.

Features :

¤ Small in size
¤ Easy to handle
¤ Nice design
¤ 9v battery powered
¤ Portable
¤ Very useful circuit
¤ LEDs give visual experience
¤ Long life
¤ Cheap circuit

Circuit Diagram :

Components Required :

IC           : NE555
Resistor     : 33k
Resistor     : 220
Resistor     : 220
Resistor     : 220
Resistor     : 220
Capacitor    : 10uF
Diode        : 1N4007
Diode        : 1N4007
LED          : RED
LED          : GREEN
Battery      : 9V

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PCB Layouts :

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Available Images :

Transistor Cheker

This is a simple circuit for identifying leads of any transistor. It will show you whether transistor leads you connected are correct or not by glowing red and green LEDs. This circuit is done by a popular analogue integrated circuit 555. It is also small in size and cheap. This is a battery powered circuit and have long life. Here we published front panel of product. Circuit is so simple and similar to transistor tester.

In this project front panel that we published contains some wirepad or socket. It is for connecting transistors. I done it by cutting IC socket into 3 holes group an connected it on the case. By soldering it with appropriate connection i completed this project neatly.
I also used stickers to decorate the case.

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Note : This image is shown as sample. You can make as per you design. It is also too large. Original board doesn't have this much size.

Monday, 20 May 2013

Transistor Cheker