Electrical Miracles
Posted on Feb 7, 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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If this picture (above) looks a lot like the Pretty Good LC Meter also on this web site, that's...
This amplifier operates from a 28 Vdc supply. It has a typical gain of 12 dB, and can survive...
A short-circuit-proof battery charger will provide an average charging current of about 8 A to a...
This amplifier is useful for applications where a 10- to 15-W peak-envelope-power (PEP) signal...
This is probably the simplest radio transmitter that you will find anywhere. It has a total of...
This DIY 12V to 220V voltage converter is build with CMOS 4047 that is the main component of this...
Ambient light is increasingly being used as a source of energy. To help designers of such...
Microchip has addressed this need with a full line of serial EEPROMs, in a variety of memory...
This optical trigger is a general purpose module for use with `standard` 3mm package infrared...
DC Power Supply 9 Volt Regulator, that can give current get about 1 Amp arrive at 2Amp. I sees...
The digital sine wave generator (oscillator) circuit has the advantage that only few components...
An oscillator is an amplifier with a feedback loop from output to input. Barkhausen criteria...
You should notice that the opto-isolator LEDs are connected to three wires labeled "FWD", "REV",...
One of the outstanding problems in the design of vacuum-tube oscillators is that of keeping the...
The inputs of the 74LS153 chip were mixed, which caused the address block decoding to fail. By...
As shown, the 555 and the surrounding elements constitute a voltage - frequency conversion...
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