Car stereo amplifier is very important, as it makes sound signal strong and give power to speaker so they work good. Also, the IC TDA1553 chip gives this car stereo amplifier circuit strong Class B amplification; designers developed this compact chip for car radios and it performs well while requiring only a few external components. […]
Hobby Circuits
Measuring RPM with a Tachometer Circuit
A tachometer measures how fast a motor shaft or disk rotates and it displays the speed in RPM (revolutions per minute). This article for Measuring RPM with a Tachometer Circuit teaches us how simple tachometer circuit made, how it work and how to build it. Also, tachometers play an important role in industries, automobiles and […]
Digital Volume Control Circuit using IC MAX5486
Volume control is very important in audio technology and digital way is more popular now and is very exact and works well. In this circuit, the MAX5486 chip handles digital volume control and its simple design makes the circuit easy to build, also the chip adjusts the sound level accurately and clearly through digital control […]
Simple Stereo Headphone Amplifier Circuit using IC LM4910
LM4910 IC is special chip, it makes stereo headphone sound good by using a very low power, also the circuit is useful for small devices like MP3, phone, battery gadgets. Furthermore, it work on low voltage to around 3.3V and has shutdown mode to save power. This article for Simple Stereo Headphone Amplifier Circuit using […]
Super Sensitive Intruder Alarm Circuit
This article for Super Sensitive Intruder Alarm Circuit talks about very simple but strong intruder alarm circuit, also it is very sensitive. Furthermore, this circuit is useful for security and it can detect very small Interference. This circuit uses IC 741 op-amp and IC 555 timer to work and it also use LDR (light sensor) […]
Simple Christmas Series Lights Tester Circuit
Christmas come one time in a year and it brings big joy. The Simple Christmas Series Lights Tester Circuit is an easy to build design that helps us find and fix problems in series Christmas lights, also people commonly use these lights for holiday decorations. If one bulb stops then all lights go OFF, as […]