Auto Microphone Muter
Posted on Mar 25, 2013
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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I`ve found some interesting schematic of Load Cell amplifier. As we know, load cell amplifier is...
This design adopts a well established circuit topology for the power amplifier, using a...
Make a toy device which spins to the left whenever there is an obstruction in front of it,...
This is a simple design for Voltage Regulator Circuit using pass transistor. The design has built...
The SC9270C/ SC9270D is a complete DTMF receiver integrating both the bandsplit Filter and...
An inexpensive electronic instrument useful in demonstrating electrostatic phenomena. First,...
A motorcycle or boat battery that is not needed over the winter is usually charged before being...
This is a compact, easy to build amplifier that uses one IC only but delivers 40 watts of audio...
The AVO VCM 163 is one of the few tube testers (British: valve tester) being able to measure tube...
This Arduino sketch is useful for rescuing ATtiny microcontrollers rendered useless by incorrect...
This circuit is designed to operate an electrical door-release mechanism - but it will have other...
I like to present a Shielding Carpet for shielding Electromagnetic (EM) and Ultrasonic waves....
AD524 low-drift (drift voltage 0.5mV, maximum drift 25 mV door C), low noise (0.3mVp p,...
As shown in FIG source constituted by PGA203 programmable instrumentation amplifier suspended....
As shown, still work in the case of unknown polarity of the voltage or the power supply polarity...
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