Music Light Circuit without Contact

This music operated dancing light circuit can be positioned in front or near any loudspeaker or an audio source and enable a correspondingly dancing or sequencing lights connected at the output of the circuit. Since the design is based on triacs and mains AC, the lamps are 220V or 120V AC filament lamps, which may […]

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Programmable Musical Organ Circuit

In this post we are going to construct a musical organ circuit whose musical tone can be programmed by adjusting 10 pre-sent resistors in the circuit and the speed of the music played can also be controlled. The proposed circuit is based on IC 555 and IC 4017; it has two IC 555s and one […]

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Simple Electronic Pinball Game Circuit

This highly portable electronic pocket pinbaIl game circuit may not exactly be a substitute for its big brothers in the amusement arcades, but it still provides a lot of fun. The circuit is relatively simple: three CMOS ICs, nine LEDs, six resistors, one capacitor, one push- button and a 9 V battery. Together with R1, […]

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