Service manual
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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The following circuit can be used to detect those annoying piezo whistles that one can get from...
In the circuit the frequency trimming component is arranged so that the voltage across it is in...
This provides bidirectional speed regulation for small motors and requires no tachometer. The...
Laptop computers often use large-screen LCDs, which require a variable and a negative supply to...
Wouldn`t be cool sitting at your favorite coffee shop with this phone on the table, and while...
Some still remember the serial RS232 port or ports, or there is also a call COM PORT because...
Remotly check the temperature of a few things, in my case the repeater site at GB3PY. A system...
In order to understand how the following circuits are connected to each other you have to read...
My coolant level alarm has been working for the last 6 years, the alarm started to go off fairly...
Mechanical contacts have the disadvantage that they wear out. That is why it is practical to use...
The medical ultrasonic atomizer circuit is composed of power supply circuit, atomization amount...
The current loop interface circuit diagram of AD694 multi-functional sensor signal conditioner...
In some of the requirements and the current is not rectified voltage power supply circuit is not...
As shown in FIG constituted by 380MHz RF2175 linear amplifier application circuit. Radio...
Automatic irrigation control circuit can automatically crop irrigation according to the size of...
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