Hi-Fi Preamplifier
Posted on Jun 23, 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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The circuit on the right uses three bipolar transistors to accomplish the same result with the...
The circuit consists of two oscillators, both working at about 465 kHz. One uses an if...
This is a simple low-level noise maker that`s ideally suited to certain alarm applications. When...
This article is for those who wants to make their own car amplifier. The basics of calculation...
Our car radio has the annoying habit of forgetting what part of a CD it was playing when you turn...
The following diagram is the circuit diagram of 20 band stereo graphic equaliser which will...
This is a circuit of negative resistance circuits. All of the preceding circuits rely on RC time...
The mobile robot should run under the unknown and uncertain environment, must possess autopilot...
This circuit is an oscillator, and is able to generate a sound wave, a tone. The tone`s frequency...
This is a circuit for RF (radio frequency) transmitter experiment, watt meter is useful for...
Can be directly connected to CD players, tuners and tape recorders. Simply add a 10K Log...
The circuit design guiding ideology can debug without any RF instrument, its performance can not...
The solid-state, unity-gain power buffer is easy to imagine, as many already exist. But what...
Floating the grid above ground is bad for RF, and bad for arc protection. The control grid ground...
The circuit uses a 555 timer wired as an astable oscillator and powered by the emitter current of...
Automotive electronic locks circuit principle is shown in Fig. ICl dedicated lock IC 5G058, it O...
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