Schematics Vault
Posted on Feb 4, 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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This project is based almost directly on the typical application circuit in the National...
Anyone who has been to a night club, concert or school dance has probobly seen a colour organ....
This circuit shows a typical over/under-voltage fault monitor for a single supply. The upper trip...
This circuit uses a type 741 op amp as a voltage comparator. One input of the 7.41 is connected...
Interfacing high power load can be done in many ways, such as using voltage divider resistors,...
Capacitive touch sensors are based on the electrical capacitance of the human body. When, for...
The present tester is intended primarily for testing the 24 V electrical circuits found on most...
A very simple circuit for FM receiver, no IC required, and only a single transistor. I`m not sure...
The basic functions of this drive are to give smooth start to motor change the direction, change...
The DE2 Board has eight 7-segment displays. These displays are arranged into two pairs and a...
ADC0809 is an 8-channel analog switch with an 8-bit successive approximation A/D converter....
Between fixed loudspeaker that period. Its outer diameter must be consistent with the paper tube...
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