TV audio circuit TDA2009
Posted on Mar 28, 2007
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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 amplifier is capable of delivering around 1.5W into 8 ohm headphones, and 2.2W into 32 ohms -...
This circuit is fed from the earphone jack of your receiver and goes to limiter control R6 and is...
The circuit furnishes an initial charging voltage of 2.5 V per cell at 25°C to rapidly charge a...
The circuit includes a low-distortion, 1-kHz oscillator and will measure THD at a user selected...
Perhaps the most challenging aspect of interpreting ladder diagrams, for people more familiar...
Build primarily as proof of concept and because I found the challenge interresting, this little...
MM5314 a monolithic MOS integrated circuit that utilizes P-channel low threshold, enhancement...
This article describes how to build a simple uC based delay circuit for photographic applications...
The hobby circuit below uses an unusual method to generate about 12, 000 volts with about 5uA of...
This small circuit is ideal for checking the basic operation of an infrared remote control unit....
This circuit enables observation of movement between other stroboscopes. Generation of...
One is in a leather bag and is model EE-8-A. One or more is in a canvas bag and is EE-8-B. All...
The FDK Multi-750e was launched in the UK in 1981. A 2m ham radio multimode tranceiver, at a good...
This is a schematic and block diagram of a 2-MHz frequency counter. It uses and LSI...
Eggs hatch chicks temperature requirements within 36 ~ 39oC temperature range, temperature sensor...
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