Low-Noise Audio Preamp
Posted on Sep 12, 2012
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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TCP based security system using the Ethernet module offered within the contest , an ATmega16L...
The traditional restnct1on of constant gainbandwidth products for a voltage amplifier can be...
This field strength meter consists of a tuned crystal detector producing a dc output voltage...
Large input-to-output voltage differentials, caused by wide input voltage variations, reduce a...
If you haven`t already read my CT-100 restoration article, I suggest that you start there. It...
Many people experienced sleeping well in natural surroundings, into a tent or a wooden hut. This...
Here`s the circuit diagram based on PIR motion sensor module BS1600 (or BS1700) that can be used...
Circuit The circuit diagram provided is a triac - diac electronic fan regulator that would reduce...
wireless FM transmitter or often called fm transmitter uses 2 transistors in this article uses 2...
A simple triangle/squarewave generator using a common 1458 dual op-amp that can be used from very...
It is using the IC-type multi-vibrator for the oscillator of the alternating current. The...
The goal is to take photos of some fairly quick process (well, at least too quick for the human...
As shown thyristors - linking arm rectifier module three-phase half-controlled bridge rectifier...
Eight-channel isolated as shown in Fig constituted by ISO120 and PWS740 0 ~ 20mA current loop...
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