Tesla built the world`s most powerful radio transmitter. Around the base of a 200-foot mast, he placed an air-core transformer that measured 75 feet in diameter. The primary consisted only of only a few turns of wire; the secondary was 10 feet in diameter and consisted of 100 turns of wire. Using the transformer, he generated on the order of 100-million volts.
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From the 3-foot copper ball on the top of the mast, bolts as long as 100 feet leapt; Tesla had created the first man-made lightning. And with that "Tesla Coil" he was eventually able to a bank of 200 incandescent light bulbs from a distance of 26 miles. Unfortunately, Tesla`s ideas were considered nonsense by most of the reputable scientists of his time. Even today, he receives little recognition for his many important contributions to electronics and electricity. Chief among those, of course, is his development of the AC power-distribution system, which is still in use today. And, of course, there is the high-voltage generator he used for his Colorado Springs experiments. Scaled down versions of that Tesla coil are popular among experimenters and hobbyists. When treated with care, they can provide hours of fun. As mentioned previously, the primary winding is energized by a line transformer that delivers 5000-10. 000 volts AC. Such a transformer is potentially deadly and should be treated with utmost care. It would be more than prudent to house that transformer in an insulating plastic case to protect yourself and curious onlookers. Take a look at the schematic diagram of Fig. 1. Don`t let its simple appearance fool you. For the circuit to work, resonance has to be achieved and that is the catch. When dealing with high-frequency voltages (in the 200, 000-volt range) exact capacitance, voltage, and frequency measurements...
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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