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Oscillator Circuits

Simple Hulda Clark Zapper Circuit using IC 555

Last updated on 5 June 2026 by Admin-Lavi 2 Comments

The IC 555 generates an electric current at a set frequency for healing in this Simple Hulda Clark Zapper circuit, also Hulda Clark developed this type of circuit, known as a Hulda Clark zapper, in 2003. Circuit Working: Parts List: Components Values Quantity Resistors 1k, 3.3k 1/4 watt 2 each Capacitors Ceramic 4.7nF 1 Ceramic […]

Filed Under: 555 Timer Projects, DIY Projects, Mini Projects, Oscillator Circuits

Simple Morse Key Circuit using IC 555

Last updated on 5 June 2026 by Admin-Lavi 2 Comments

This article show how to make a Simple Morse Key Circuit using IC 555, which is an easy circuit and is good for Morse code practice. Also, IC 555 can work in many ways, in this project it work as astable multivibrator which means it make signal by itself and there is no need for […]

Filed Under: 555 Timer Projects, Audio Circuits, Hobby Circuits, Mini Projects, Oscillator Circuits

Simple Ticking Bomb Simulator Circuit

Last updated on 5 June 2026 by Admin-Lavi Leave a Comment

This post is about a Simple Ticking Bomb Simulator Circuit, which make ticking sound like real bomb in movie or game. Also, this circuit is just for fun and with no real danger. Circuit Working: Parts List: Components Values Quantity Resistor 47k 1/4 watt 1 Capacitors Electrolytic 10μF 25V 2 Semiconductors IC 555 1 Speaker […]

Filed Under: 555 Timer Projects, Hobby Circuits, Mini Projects, Oscillator Circuits

Simple Metal Detector Circuit using IC 555

Last updated on 5 June 2026 by Admin-Lavi Leave a Comment

This is Simple Metal Detector Circuit using IC 555, uses IC 555 chip which works like small clock and makes signal to help find metal and magnet Also, it is easy to build and good for beginners. Circuit Working: Parts List: Components Values Quantity Resistor 47k 1/4 watt 1 Capacitors Electrolytic 10μF 25V 1 Electrolytic […]

Filed Under: 555 Timer Projects, Hobby Circuits, Mini Projects, Oscillator Circuits, Security and Protection, Sensors and Detectors

Simple IC 555 Oscillator Circuits

Last updated on 4 June 2026 by Admin-Lavi Leave a Comment

Simple IC 555 Oscillator Circuits is a 555 timer chip which is common and easy to use; also it is good for many projects. But for some circuits we must know how it works when not active. Two main pins: IC 555 Pinouts Here is a list that shows what each pin on the chip […]

Filed Under: 555 Timer Projects, Hobby Circuits, Mini Projects, Oscillator Circuits, Timer Circuits

Simple Phone Transmitter Circuit

Last updated on 4 June 2026 by Admin-Lavi Leave a Comment

Simple Phone Transmitter Circuit uses few parts, as it take sound from phone talk and changes to signal and also signal goes far using antenna. Furthermore, this circuit is easy to make and works well with landline phone. Circuit Working: Parts List: Components Values Quantity Resistors 10k, 47k, 330Ω (1/4 watt ) 1 each Capacitors […]

Filed Under: DIY Projects, Mini Projects, Oscillator Circuits, Transmitter Circuit

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