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Hobby Circuits

How to Generate a Safe 220V AC Supply

Last updated on 1 June 2026 by Admin-Lavi Leave a Comment

If anyone’s project needs How to Generate a Safe 220V AC Supply from home power, then this is the circuit but we need to be careful. This voltage is dangerous and to stay safe we can use a step-down transformer, as it makes voltage lower and safer and it also has safety parts to stop […]

Filed Under: DIY Projects, Hobby Circuits, Mini Projects, Power Supply Circuits

Simple Capacitive Touch Switch Circuit using IC TTP223

Last updated on 1 June 2026 by Admin-Lavi Leave a Comment

No button needed as this circuit uses a smart chip known as TTP223 to feel our touch. Like magic it touches the pad and it turns ON or OF; as this Simple Capacitive Touch Switch Circuit using IC TTP223 is an easy way to make a touch switch for fun or projects. Circuit Working: Parts […]

Filed Under: Automation Circuits, DIY Projects, Hobby Circuits, Mini Projects, Sensors and Detectors

Simple Low Power Ozone Generator Circuit

Last updated on 1 June 2026 by Admin-Lavi Leave a Comment

Simple Low Power Ozone Generator Circuit use less power, as it make ozone gas from air and it uses electric spark to change oxygen to ozone. Also, ozone help clean air and water and also kills the germs, but too much ozone is also not safe, it can be bad. Circuit Working: Parts List: Components […]

Filed Under: High Voltage, Hobby Circuits, Mini Projects

Simple Hartley Oscillator Circuit

Last updated on 1 June 2026 by Admin-Lavi Leave a Comment

Simple Hartley Oscillator Circuit is like small sound maker with electric, as it makes smooth sound like whistle and does not stops. Also, it uses coil with center tap like two coil join and one capacitor help keep sound going. Need one active part to make sound strong, as this sound circuit is different from […]

Filed Under: Hobby Circuits, Oscillator Circuits

1.5V Audio Amplifier Circuit

Last updated on 1 June 2026 by Admin-Lavi Leave a Comment

A 1.5V Audio Amplifier Circuit is small circuit it makes sound signal more strong using only 1.5V battery; also this type of circuit is low power amplifier which is good for things that uses battery or when big power is not there or not needed. Circuit Working: Parts List: Components Values Quantity Resistors (All resistors […]

Filed Under: Amplifier Circuits, Battery Charger Circuits, Hobby Circuits

Solar LED Lantern Circuit

Last updated on 1 June 2026 by Admin-Lavi Leave a Comment

Solar LED Lantern Circuit is small design using sun power to give light with LED, as it have solar panel through which the battery charges again to LED lights and some small parts like diode, resistor and transistor. Circuit Working: Parts List: Components Values Quantity Resistors 15Ω 1/2W 1 1.5Ω 1/2W 1 1k 1/4W 2 […]

Filed Under: Battery Charger Circuits, Hobby Circuits, LED and Lamps, Solar Circuits

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