Low-noise pre-equalizer circuit
Posted on Dec 11, 2010
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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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The simple circuit transforms the steady beep of an audible-signal device, such as a Mallory...
Water is a precious resource in many parts of the world, and many people rely on water tanks to...
The following figure shown an example of a three-output flyback regulator built using LM2577 that...
This version of the trigger circuit for the stop-motion camera system uses an electret microphone...
Even thought the power was off there was AC at the handle plug and I shorted something. I pulled...
This module is an enhanced version of the D. C. mixer designed for both audio and CV mixing. It...
Here is the circuit diagram of a simple 3 channel audio splitter based on the IC NE5532. NE5532...
The Proximity Sensor circuit can be seen below. Three red boxes show the additions to the circuit...
It uses pattern SH803 flash IC, within reservoir eight kinds of programs and a variety of...
by the pulse generating circuit monitor signal monostable flip-flops Monitoring by the pulse...
As shown by INA321/322 constitute a low-cost, medium accuracy ECG machine ECG amplifier circuit...
As shown in FIG XTR108 four-wire RTD is connected to the circuit. Four-wire RTD lead resistance...
Double r circuit consists of three resistors, three capacitors, substantially symmetrical double...
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