This article teaches how to use just two transistors to create a little sound generator circuit! Turning a knob will change the sounds pitch from high, like a beep, to low like a growl. Either four AA batteries or a tiny wall adaptor can power the circuit. To explore how electronics may generate sound perform […]
Transistor Circuits
Simple Latch Circuit using Transistors
The article describes how to construct a small electrical switch that remains active even after the signal is turned OFF. It is cheap and easy to construct since it uses transistors and many other necessary parts. If someone gives it a quick signal to turn it ON it will stay ON until some other circuit […]
Simple Set Reset Latch Circuit using Transistors
The construction of a simple electrical switch with two ON/OFF settings, using two transistors is explained in the article. Specially made switches called SR latches are used by many kinds of devices to protect data even when the power is switched OFF and then back ON. Transistors like the BC547 and BC557 are often seen in […]
Simple Adjustable Power Supply Circuit using Two Transistors
The described circuit is an simple adjustable power supply that uses two transistors BD140 and MJ2955 to regulate the output voltage. What is a Adjustable Power Supply Circuit: The adjustable power supply circuit is an electrical circuit that uses two transistors to control and modify the output voltage. In many electrical and electronic activities when […]
Simple Long Duration Timer Circuit using Two Transistors
Interested in creating a timer that can switch an object ON or OFF after two or three hours? Using only two transistors this article teaches how to create a basic timer circuit. For anyone interested in learning more about electronics as well as creating something practical this project is fantastic. What is a Long Duration […]
How to Build a Simple Solar Cell Circuit using a 2N3055 Transistor
Do anyone wants to know how solar panels work? Building a small solar cell at home makes this possible. Those who enjoy electronics and are familiar with the well known transistor component will find this project enjoyable. Even though this model is simple and wont power a house but its an excellent way to learn how […]