Build this exciting Jacob`s Ladder and watch electric arcs ascend the ladder and evaporate in space. It works from a clever 12, 000-volt power supply. Author Robert Iannini. ` People have long been fascinated by electric arcs-and perhaps put off by them. They show up as lightning, Tesla coil discharges, and long sparks that sting as you reach for t
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he doorknob on a cold, dry, winter day. This Jacob`s Ladder project turns electric arcs into a dramatic but harmless conversation piece. If you build this project, you`ll lean how a simple power supply operating from the 120-volt AC line can produce 12, 000 volts. In addition to powering the Jacob`s Ladder, the supply can power plasma displays, and it has even powered a light-duty, bench-type spot welder. Perhaps you would like to know the origin of the term Jacob`s Ladder. The Bible tells the story of Jacob`s dream about a ladder that extended from earth to heaven. Jacob, the son of Isaac, was the father of the founders of the twelve tribes of Israel. Among sailors, however, a Jacob`s Ladder is a long rope ladder that is hung over the side of a ship so the harbor pilot can climb aboard. The power supply for this project forms electric arcs across two diverging stainless steel strips mounted in a protected case. The 16-inch long strips are mounted on insulating Teflon blocks to eliminate possible leakage. The stainless steel strips are angled with respect to each other so that the arcs form at the edges of the strips that are separated by about 3/16 inch at their bases but the strips diverge to a distance of about 2 inches at their upper ends. The strips form a gap in the secondary winding of the output transformer. After power is turned on, the air dielectric breaks down due to the "almost" short-circuit state across the...
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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