Audio oscillator
Posted on May 23, 2012
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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 capability to determine which part of the tape is empty and which part has a recorded data...
Doing this atari Sequencer and I think there`s an error in the drawing can not see. the atari is...
There are many kinds of AVR programmers in market, most of these use the parallel port, a serial...
The target of this project was the design of a small portable mixer supplied by a 9V PP3 battery,...
This circuit uses a 555 timer which is setup to both runn in an Astable operating mode. This...
One of the EL34 output valves had blown, the normally silver coloured getter had turned white...
Be sure to mark clearly on the circuit diagram of a part of each type and size! Thank you!...
I accept acclimated a brace of BC548 transistors in this circuit. Although not carefully RF...
To the left in the diagram, you find the micro memory containing up to 64 different addresses...
Input signals from the power line are coupled through C23 and R19 to the input filter network....
This project is a simple 12V to 220V modified sine-wave inverter using 555 timer IC and CD4017...
Designed around the popular ZN414 IC this receiver covers the medium wave band band from...
As applied to a concrete circuit relay. Transistor VT is high-speed, high- voltage switch is....
As of control type delay circuit discharge Discharge delay circuit and a delay circuit...
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