This post shows you how to build a mini sound generator circuit with just two transistors! You can adjust the sound to be high pitched like a beep or low pitched like a growl by turning a knob. The circuit can be powered by either four AA batteries or a small wall adapter. This is […]
Transistor Circuits
Simple Latch Circuit using Transistors
This article shows you how to build a tiny electronic switch that remembers it is turned on even when you take away the signal. It uses transistors and other basic parts, making it cheap and easy to build. You give it a quick signal to turn on and it stays on until you turn it […]
Simple Set Reset Latch Circuit using Transistors
This post shows you how to build a tiny electronic switch with two settings on or off using transistors. These special switches called SR latches, are used in many electronics to remember things even when you turn the power off and back on. This one uses two common transistors a BC547 and a BC557. What […]
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: An Adjustable Power Supply Circuit using Two Transistors is a type of electronic circuit that allows for the regulation and adjustment of output voltage using two transistors. […]
Simple Long Duration Timer Circuit using Two Transistors
Want to build a timer that can turn something on or off after a long time, like 2 or 3 hours? This article shows you how to make a simple timer circuit with just two transistors. This is a great project for anyone who wants to learn more about electronics and build something useful. What […]
How to Build a Simple Solar Cell using a 2N3055 Transistor
Want to learn how solar panels work? Build your own mini solar cell at home! It is a fun project for electronics enthusiasts and uses a common part called a transistor. This is a basic model and wont power your house, but it is a great way to see how sunlight can be converted into […]