tv-transmitters circuits
Posted on Feb 5, 2014
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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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Anyone who has been to a night club, concert or school dance has probobly seen a colour organ....
Plug an ATtiny12 into the 8 pin socket and hold down "GO!" button. The LED will come on at the...
The choice of material to read or drive is the definition of three digits (Bit), RA0, 1,2 PORTA...
This circuit generates simultaneously, a triangle and a square waveform. It is self starting and...
This switch reacts to the touch of a finger to turn lights and/or appliances on or off. The...
The amplifiers of a LM3900N device can be conveniently used to make a mixer unit for audio...
Automatic dark detector senses darkness. As the light level decreases and LDR meets the maximum...
These two headlight reminder circuits are easy to install and operate on the KISS (Keep It Simple...
As a wideband PLL FM Demodulator the UTC L2572 is intended for application in satellite Tuners...
These two headlight reminder circuits are easy to install and operate on the KISS (Keep It Simple...
The first BC109C transistor (left hand side) is acting as a buffer. It provides the circuit with...
This tester is designed to locate stray electromagnetic (EM) fields. It will easily detect both...
A 2000 GMC Yukon Denali that is intermittently losing power to the radio, power windows and...
This page serves as documentation for the circuits that I have built which make use of the...
There are two schematics that we`ll look at to see how to build this transmitter/receiver system....
Electronic thermometers as shown in the circuit. RT is the thermistor, A is an integrated...
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