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:: Home » NPN transistor circuit

NPN transistor circuit

Experiment with transistor as switch

Published on: September 21, 2023 by Apichet Garaipoom
Experiment with transistors as switch

Let’s try transistor as switch, to understand how they work, stop it, find Rb, and What you need to know to use transistors smoothly. Read more

Categories Basic Electronics Tags NPN transistor circuit, simple principles of electric circuits., switches circuit diagram, transistor circuits 2 Comments

Toy Organ circuit using transistors

Last Updated on: July 12, 2023 by Apichet Garaipoom
Toy organ circuit using transistors

Let’s play a simple toy organ circuit. My daughter has interested in piano. Believe it or not, we can create a simple piano circuit by ourselves. Read more

Categories Oscillator circuits Tags Musical organs circuits, Astable multivibrator, Music generator circuit, NPN transistor circuit 15 Comments

LED VU Meter circuits using transistors, 5 to 20, 40 LED

Last Updated on: March 23, 2023 by Apichet Garaipoom
LED VU meter transistor

See LED VU meter using transistor is analog circuit to show the level of power audio signal. You can build 5 LED to 20 LED display with PCB. Read more

Categories Meters & Detectors Tags Sound Level Meters, NPN transistor circuit, VU Meters 13 Comments

How does a transistor circuit works

Last Updated on: July 18, 2023 by Apichet Garaipoom
How does a transistor circuit works

Learn transistor circuit works, old parts But, we often use it. Because of durable, high current. Whether any reason. Let’s learn they works in simple way. Read more

Categories Basic Electronics Tags NPN transistor circuit, simple principles of electric circuits. 4 Comments

Lie detector circuit

Last Updated on: July 12, 2021 by ElecCircuit.com
Lie detector circuit

See and try building Lie detector circuit. The resistance of human skin using transistors and LED displays is small and easy application. Read more

Categories Meters & Detectors Tags NPN transistor circuit, Electronic game circuit diagram 12 Comments
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