NE566 frequency modulator
Posted on Mar 28, 2007
New Circuits
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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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Automatic gain control is a very useful feature in a number of audio amplifier circuits: tape...
The circuit is a form of the so-called ""Americanized" version of the Baxandall negative-feedback...
The circuit in this figure is protecting the circuit and the system with power supplies that may...
Here`s a project that could be useful this summer on the beach, to stop anyone touching your...
It relies on the smoke that is produced in the event of a fire and passes between a bulb and an...
When the motor is connected in this fashion, the netduino activates the transistor, but nothing...
My mobile rig, a Kenwood TM-D710E, needed a GPS receiver for APRS use. The GPS-710 wasn`t readily...
Four appearance drive signals for two appearance bipolar and four appearance unipolar footfall...
There are three Controls to be Adjusted to make a Proportional Flow Controller Perform Properly....
build an interface board to connect some scientific equipment (for me, a pair of photovoltaic...
This is schematic of a synthesized PLL for the Low Power FM transmitter. By the way, you also can...
This is higher input or output for L200 voltage regulator circuit. This circuit is designed to...
I recently uncovered this schematic, that seems to be authentic and does not feature the 555...
Built around an Intersil 7216 frequency-counter IC, this counter has a basic range of 10 MHz, a...
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