Audio Circuits

An FM radio circuit is the electronic heart of a device that can pick up FM radio waves and convert them into sound you can hear. Below are the functions of Radio, FM radio and FM vs AM. Radio: FM Radio: FM vs. AM: Circuit Working: Parts List: Component Description Quantity Resistors (1/4 watt) 10k […]

Tired of expensive voice recorders? This post shows you how to build your own simple one! You can use it to record short messages for your family or friends. Just press a button to record and another button to play it back. Note: This project might be more complex than some others. What is a […]

This article explains a circuit that can pick up very low radio waves VLF from the air and turn them into sounds you can hear. Regular radios often miss these VLF waves because they focus on higher frequencies. This circuit is different it can find these, lower waves and convert them so you can listen […]

This circuit explains a special type of volume control for electronics that uses digital parts instead of a knob. Regular volume knobs use resistors to control the loudness, but this type uses tiny computer chips to do the same thing. This can be more precise and offer other features. Circuit Operation: Parts List: Category Type […]

This circuit has a special filter that can be adjusted to cancel out specific sound frequencies. This is useful because you can change it to fit what you need. Another name for this filter is a band stop filter or band reject filter. These filters mostly get rid of or weaken certain sounds within a […]

Imagine a scenario where a miniature motor boat moves throughout your room effortlessly. In this setup, neither water nor a complicated wooden frame with a hefty engine attached is required only this compact electronic device suffices. What is a Motor Boat Sound Generator Circuit: A Motor Boat Sound Generator Circuit is an electronic circuit designed […]