By sensing vibrations from footfall, a Footsteps Detector Circuit is a creative and affordable approach for catching intruders. It employs a simple setup with a low-cost loudspeaker and a mute […]
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Battery Low Voltage Alarm Circuit
Despite its simplicity, the Battery Low Voltage Alarm circuit has a very important function. It forewarns you of approaching battery failure so that you may run to the store and […]
Piano, Guitar Sound Effect Generator Circuit
Music is a part of our lives, accompanying and enhancing our everyday experiences. While it is easy in electronics to generate a single note, for example, using a simple astable […]
Mains 220 V AC Line Filter Circuit for Transient Suppression
The 220 V mains AC line filter circuit described here has two functions: it prevents high-frequency waves from being sent back into the power network and it protects connected equipment […]
100 Watt Amplifier Circuit using LM12 IC
The LM12 integrated circuit (IC)-based 100-watt amplifier circuit is a strong audio amplification solution created to produce high-quality sound in a small package. This amplifier delivers outstanding power output while […]
10 Watt Stereo Amplifier Circuit
With a simple design, this 10 watt stereo amplifier circuit offers good dynamics and excellent bass reproduction. Although its power output is modest, at 2x10W RMS, it allows for comfortable […]