Radio Circuits
Posted on Feb 6, 2014
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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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A single transistor makes a simple phase shift oscillator. The output is a sine wave with...
The following is an example for a very simple and high quality JFET preamp. You can use this to...
This circuit is capable of amplifying the output from a 150-ohm dynamic microphone to line level...
Audio test oscillator audio test oscillator circuit, This generally results in a square wave if...
This circuit can be used for an assist in parking the car near the garage wall backing up Pls....
Voltage output is controlled by 10K variable resistor. Output voltage range value will be about 3...
This schematics show a digital thermostat designed for controlling ambient temperature inside a...
Since high frequency voltage-controlled oscillators, or VCOs, are not easy to construct, Maxim (...
The SA608 is a low voltage high performance monolithic FM IF system incorporating a mixer...
This design adopts a well established circuit topology for the power amplifier, using a...
A vco using the LM324. I have the schematic to the korg monotron, which uses the lm324 as the IC...
This simple and economical IR model train detector circuit is intended especially for those...
I will be using the bike eventually for quite long trips, off roading at night and dual sport...
As shown for the speaker protection circuitry. It is designed for the left and right channels...
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