Variable-capacitance-diode-sparked-vco
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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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Many Video Operated Relay (VOR) circuits have been published in recent years for use in...
The probe described here was designed to be used over the range of several tens of Hz to a couple...
The circuit disconnects the battery from the load when output voltage falls below a preset level....
This voltage-controlled oscillator circuit is very compact and has a good linearity. The author...
This is the circuit diagram of audio/video modulator. The circuit will convert an audio and video...
The Atmel ATmega series of microcontrollers are very popular due to the large number of...
The schematic is in PDF, and cannot be send to you by this site. Check this site. It has some...
Burned out some resistors on the circuit board of my Roland KC-300 amp and they are so black that...
In many discussions of LPAM transmitter design you will hear or read references to "the Wenzel...
BR Communications (later merged with TCI to become TCI/BR, later bought by Dielectric Inc ) makes...
Two diodes in feedback path or LM324 opamp create musical-instrument effect known as fuzz by...
Core elements of this circuit is the second four-input NOR gate terminal IC CD4001, the entire...
FIG. A ~ c circuit has a high coefficient of voltage. If the regulator resistance rz is constant,...
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