No more boring ding dong bell! This Touch Controlled Musical Door Bell Circuit show how to make doorbell which play small music tune; just press a button and it rings a melody sound which we can choose which one. Also, this circuit is fun idea to make door more special and different. Circuit Working: Parts […]
Audio Circuits
Simple Siren Circuit
To begin with, this Simple Siren Circuit article show how to make circuit sound like real siren! here, the sound goes up and down fast like police car or ambulance siren. Also, building this type of circuit is fun, but remember that people use sirens during emergencies. Circuit Working: Parts List: Components Values Quantity Resistors […]
Booster Circuit for Cable Radio
Anyone having problem getting radio signal from cable? then maybe this post for Booster Circuit for Cable Radio can help which is also called cable radio amplifier. Moreover, this thing make signal strong when going through cable, as cable company give many channels but sometimes signal is not good because of too much distance or […]
Simple FM Radio Receiver Antenna Booster Circuit
Do anyone have a favorite radio station with static sometimes?; then this Simple FM Radio Receiver Antenna Booster Circuit teaches about how to make signal booster for FM antenna on radio. Also, sometimes radio signal are not strong especially if person live far from radio station, so this small circuit makes weak signal stronger and […]
Simple Electronic Stethoscope Circuit
This Simple Electronic Stethoscope Circuit teaches us about how to make one type of stethoscope circuit. Normal stethoscope uses tube to listen small sound from body like heart and lung but this electronic stethoscope uses small electric parts to make sound more clear and loud. The circuit also help doctors and nurses hear better what […]
AVC Automatic Volume Control Circuit
This AVC Automatic Volume Control Circuit work like auto volume knob, as it hears the sound coming like music or talking and then change volume by itself. Also, if the music plays at a low volume, the circuit makes it louder and if the music becomes very loud, the circuit reduces the volume slightly. Hence, […]