Analog sound KD156 have lingering Ding Dong sound of birds singing and the integrated circuit
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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The basic circuit can be operated at 80 kHz and is limited by the PUT capacitor combination. 60...
This circuit for a test set contains a signal injector (U1A/U1B) and associated com
Building a serial voltage meter to measure from 0 to 5 volts DC is actually pretty easy. Using...
Arduino can drive many kinds of motors. But the low-power signals from Arduino need to control...
Without any USB to phone battery charger circuit we can charging phone battery using port on USB...
The pulser is intended to switch the mains voltage on and off at intervals between just under a...
When troubleshooting the 12v electrical system of an automobile, its nice to possess an easy...
Here is a new audio power amplifier schematic built around TIP darlington pair transistors. You...
This Class E RF amplifier will deliver up to 400 watts of RF output, depending on the input...
COMSOL, adding SPICE® elements into its FEM, gives the possibility of a direct modeling of...
This Module employs an unusual topology, still maintaining the basic op-amp circuitry of the Main...
I will be using the bike eventually for quite long trips, off roading at night and dual sport...
BSL is shown in low-voltage distribution panel wiring diagram. It consists of three parts,...
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