This is project is for Logic XOR Gate Circuit with Transistors It uses transistors and resistors. It shows how XOR logic works. Output is high only when inputs are different. Good for students and beginners to learn digital logic. Truth Table for Logic XOR Gate: Input A Input B Output Y (A ⊕ B) 0 […]
Transistor Circuits
Logic NOR Gate Circuit with Transistors
NOR gate is a universal logic gate. It gives output HIGH only when all inputs are LOW. It performs both OR and NOT operation together. In this circuit two NPN transistors are used to make NOR logic. Truth Table for Logic NOR Gate: Input A Input B Output Y 0 0 1 0 1 0 […]
Logic OR Gate Circuit using Transistors
Logic OR Gate Circuit using Transistors is simple digital logic gate. It give HIGH output if any input is HIGH. We can make Logic OR Gate using two NPN transistor like BC547. It uses small current and is easy to build. Truth Table for Logic OR Gate: Input A Input B Output Y 0 0 […]
Logic AND Gate Circuit using Transistors
Logic AND gate is a basic digital logic gate. It gives high output only when both inputs are high. In this Logic AND Gate Circuit using Transistors is easy to make. This is a simple example of transistor logic gate. Truth Table for Logic AND Gate: Input A Input B Output Y 0 (LOW) 0 […]
How to Make a Logic NOT Gate Circuit with Transistor
NOT gate also name as inverter. It changes from 1 to 0 and 0 to 1. We can make Logic NOT gate circuit with one transistor. Very simple and work with digital signal. It uses very less parts. Output is opposite of input and it works fast. It is useful in digital circuit, computer, electronic […]
Single Transistor Theremin Oscillator Circuit
Theremin is one very old electronic music instrument. It make strange space type sound without touching any part. Human hand move near antenna or plate and the pitch of sound changes. This happen because hand change the capacitance value near the circuit. In this article we will show very small and Single Transistor Theremin Oscillator […]





