Scientific Society
Posted on Feb 5, 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 page describes how to build this full-bandwidth single-port (one input and one output) MIDI...
Simplified logic checker. Logic voltage levels have the ability to display LED (Of course I...
This is a simple microphone preamplifier circuit which you can use between your microphone and...
This circuit uses a germanium diode (marked Ge) as a temperature sensor. I used an OA90 diode...
This supply generates an initial high voltage for ignition purposes. After ignition, the supply...
This circuit is for a simple LED `bar graph` voltmeter. Each op-amp of the 339 quad operational...
Taking inspiration from the good folks at Nanode and an Instructable I saw recently, I`ve come up...
The BQ2000 is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd),...
This circuit seems interesting and I wanted to simulate and construct it, but the problem is I do...
A Peak Detector is any circuit that functions to detect the peak voltage of an incoming waveform....
As shown in FIG constituted by RF2103P 915MHz RF amplifier circuit. P1 for the outlet, which...
Figure 289 Star STMicroelectronics (ST) deputy public cattle produced VK05CIl. ASIC production of...
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