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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 low resistance ( 0.25 - 4 ohm) continuity tester for checking soldered joints and connections....
The MPF102 (Q1) can be replaced with a NTE451 or ECG451, but still widely available. JFET-N-CHAN,...
This power supply circuit is highly stabilized that its output voltage will drop only 0.005% even...
This is an on-off control with isolated, low voltage input. Since the switching action is very...
An LF356 op amp is used as a gain amplifier with the output taken across R5, When a full-scale...
A ascends a route while Climber B stays on the ground and tracks Climber A`s progress with the...
To order boards, click to go to the ESP Purchase form. Verify the price and postage, then open...
Sometimes you need a low voltage power supply of very high currents (hundreds of amperes) -...
The approach you have shown would dissipate (12V)(3A) = 36 watts. This is quite a lot of...
This simple circuit has helped me out on many occasions. It is able to check transistors, in the...
First of all, the circuit is ok, but it`s rather unstable. It varies with temperature, and, for...
Those of you who own large 500 watt and higher Astron linear power supplies, and even large HF...
As shown in FIG grounds TDA6103Q and color picture tube composed of the actual application. R,...
Circuit using an ordinary digital quartz electronic watch, the lower its crystal welding, as...
Common diode balanced modulator circuit is shown. It consists of two identical performance...
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