Neon light look very nice but it needs much electricity to work. This Neon Tube Flasher Circuit show how to make special circuit to turn ON and OFF neon light using small battery with low voltage DC. WARNING: Making high voltage circuit can be dangerous. Do this only when adult are watching. What is a […]
Transistor Circuits
Simple FET Two Lamp Flasher Circuit
Simple FET Two Lamp Flasher Circuit connect same like simple astable multivibrator. They make easy circuit for two lamps flashing one after other. What is a FET Lamp Flasher Circuit: This circuit using FETs mostly used for flashing lights or bulbs. It also uses some other parts but mainly has few field effect transistors. Circuit […]
Simple Adjustable Oscillator Circuit using Two Transistors
This article for Simple Adjustable Oscillator Circuit using Two Transistors show how to make small sound circuit using only two transistors! When we turn the knob the sound goes high like beep or low like growl. We can use four AA battery or small wall power to run this circuit. Try this easy experiment to […]
Latch Circuit using Transistors
This article for Latch Circuit using Transistors talk about how to make a small electric switch. This switch stay ON even after signal goes OFF. It does not cost much and is easy to make. It uses transistor and some other parts. If someone gives small signal to turn it ON it stay ON and […]
Set Reset Latch Circuit using Transistors
This Set Reset Latch Circuit using Transistors tell us how to make an easy electric switch with two ON/OFF using two transistors. Some special switch like SR latch is used in many devices for keep data safe even when power goes OFF and come ON again. Transistors like BC547 and BC557 mostly used in this […]
Simple Adjustable Power Supply Circuit using Two Transistors
This Simple Adjustable Power Supply Circuit using Two Transistors is a simple power supply circuit. It can change the output voltage by using two transistors like BD140 and MJ2955 to control the voltage. What is a Adjustable Power Supply Circuit: Adjustable power supply circuit is an electric circuit which uses two transistors to change and […]