Simple IC TDA2822 Stereo Audio Amplifier Circuit is small chip with stereo amplifier makes weak music sound go louder which is strong enough for speaker or headphone. Despite using very little energy it still provides 250 milliwatts each side with good sound for small things like walkman, hearing aid or little stereo. So next time […]
Solar Powered Animal Scarer Circuit
This Solar Powered Animal Scarer Circuit is small and simple to give a try for. It uses solar panel to take power from sun. At night or at low light the battery gives power. Circuit make sound or light to scare animal like dog, cat, monkey or birds. So they do not come near farm, […]
Full Duplex Audio Line Circuit
Full Duplex Audio Line Circuit is like a strong talking line. Two people can talk at a same time on one wire like a phone call. Not like a walkie talkie where only one person talk and other wait. But with full duplex both people talk anytime like a actual talking. Circuit Working: Parts List: […]
Heatsink Temperature Protection Circuit
Think heatsink like small radiator for our devices which help keep cool. Heatsink Temperature Protection Circuit is like safety man for that small radiator. It got small sensor by always checking heatsink heat. If too hot like one have got fever then this circuit does something. It maybe a stop power or maybe like start […]
Simple Static Electricity Detector Circuit
Simple Static Electricity Detector Circuit is like alarm for electricity when gathers on things like clothes. This happen when we rub things together. This kind of electricity can break small electronics so detector is useful near them. Detector have special sensor which feels electric change in air. Maybe its wire stick out or maybe flat […]
DC Voltage Doubler Circuit
DC Voltage Doubler Circuit is like small power booster. It takes normal battery power and make almost double. It use smart parts like diodes and capacitors and they work like tiny switch and small electric bucket. Sometimes many also use transistor or tiny chip to help. Imagine electric flow from battery like small stream. This […]