This article show a special trick to make a Simple Metal Detector Circuit, which uses simple circuit not like other circuits and needs only one transistor. The circuit find metal by catching signal from a normal radio. What is a Metal Detector: A metal detector is an electric circuit that checks whether metal is nearby, […]
Simple Beat Frequency Oscillator (BFO) Circuit
Simple BFO circuit is small electronic circuit which make signal sound when mix with other signal; also this circuit help to hear weak radio signal like in old radio or metal detector. Moreover, it is easy to build and uses one transistor part called a bipolar junction transistor (BJT). What is Beat Frequency Oscillator: BFOs […]
Noise Limiter Circuit
Did anyone tried to listen a radio but heard too much noise? which was hard to hear, right? So our this problem brings a solution through this Noise Limiter Circuit which tell us how to make small circuit which helps remove noise and makes radio sound better. Also, the circuit uses transistors like tiny switch […]
Class A Amplifier Circuit
This article talk about Class A amplifier which is good for small speaker or headphone, also amplifier make sound more loud. Further, this Class A Amplifier Circuit uses near 20 milliamp power so it good for low power thing and we can show in this post how to make it using Q1 and Q2 transistor […]
Bass Treble Tone Control Circuit using a Single Transistor
This Bass Treble Tone Control Circuit using a Single Transistor BC547 is an easy tone control circuit. Moreover, we can turn bass up or down and treble also in audio sound. What is Bass Treble Tone Control Circuit: Bass Treble Tone Control Circuit make treble go high by cutting sound below 500 Hz and when […]
Simple Beeper Circuit
This Simple Beeper Circuit show us how to make a easy beeper circuit; when we press push button a sound comes from unbalanced multivibrator circuit, where a small speaker makes the sound. Also, this project is good to learn music and electronics and is also fun project for beginners. What is a Beeper Circuit: The […]