Learn and build electronic circuits
It is fairly simple to construct a ‘singing’ melodious greeting card, as explained in the following article. You can replicate this greeting card design through matching chips which carry about 30 popular melodious song versions in its UM3166-xx fully autonomous melody generator chip. This electronic chip works at an incredibly low battery voltage of around … Read more
As seen in the diagram the main stages of the circuit is built-in inside the musical chip in the form of oscillator, frequency divider, drive ROM, a ROM having 512 musical tunes, a tone generator, rhythm generator, timbre generator, modulator, run off control, and a pre-amplifier stage. Besides the IC, the circuit also consists of … Read more
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 … Read more