audio notch filter
Posted on Aug 16, 2012
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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This device was designed to replace the original digital clock in a Fiat Ducato 1992-1994,...
For our second build in the Make It Last Build Series, we`re constructing a robotic plant. This...
C1/C2 operating voltage should be elevated to 25V if you decide to go with a 12V energy source....
Here`s a simple schematic of a TV transmitter circuit or video transmitter circuit which is able...
The SI4704 SI4705 enhanced FM receiver is the most advanced portable solution available today...
After some more time with the circuit, the variable pot certainly brings in more useful results...
Derating is the method of decreasing a devices operational limits as temperature is increased, in...
The RF stage of the receiver is based on a transistor VT1, this stage works as a mixer and a...
The circuit can be selectively tuned in two very close in tone. Selective frequency is determined...
As shown for the TDA8358J actual application circuit. Television signal processing circuit input...
As shown in FIG relay is non-inductive analog circuit theory. working principle: 220V power...
As shown in the refrigerator for the LED lighting circuit schematic. The circuit is composed of...
FIG. 555 and R1, C1 and other components monostable delay circuit, the input square wave signal...
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