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. […]
Transistor Circuits
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 […]
Simple Transistor Relay Driver Circuit
Transistors are tiny switches that are used in almost all electronics. But, they cannot handle a lot of power on their own. A transistor relay driver is like a special adapter for transistors. It lets a tiny transistor signal control a powerful relay switch. This way you can use a small weak signal from your […]
Simple Temperature Indicator Circuit using a Single Transistor
Building a basic temperature sensor is easier than you might think. This post shows you how to make one with just a single transistor, a diode and a few other simple parts. What is a Temperature Indicator Circuit using a Single Transistor: A temperature indicator circuit using a single transistor is a simple electronic circuit […]
Simple Current Limiter Circuit using Transistors
This article shows you how to build a circuit that limits how much power goes to other electronics. It uses two transistors and a special resistor to act like a guard and make sure things do not get overloaded. What is a Current Limiter Circuit using Transistors: A current limiter circuit using transistors is designed […]