This area shows the construction and testing of a medium to large class Tesla coil. In this section, the previous coils were dismantled and a new larger coil, with a secondary over 6 inches, was redesigned and constructed for maximum efficiency at a power if about 1, 440 watts. The tesla coil project is aimed mainly at the scientific and Tesla coil
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er community. I intend to use my Tesla coil for lightning demonstrations and entertainment. The Tesla coils so far on this page were of low power and experimental in nature. This section shows a larger and more efficient coil built from scratch and within stricter adherance to the electrical rules involved in Tesla coiling. The new coil is a 1. 5 KVA coil running off a bank of two 12KV, 60 mA NST`s and sports a 6-inch secondary made from scratch! The secondary form for this coil is made of layered acrylic fabric sheets stiffened with styrofoam to form a 6-inch diameter cylinder and laminated with many layers of polystyrene resin (fiberglass clear boat resin). Each end is sealed and capped with 1/4 inch plexiglass and the form is close-wound with about 900 turns of #22 magnet wire. The tank circuit for this coil is a modified RQ spark gap with 10 3" x 3/4" copper pipe electrodes and 10 doorknob capacitors in parallel (each is 2500 pF at 30KV) yeilding 0. 025 uF. The entire tank circuit is wired with 1/4" copper tubing encased in clear neoprene and heavy metal strip for the caps. The primary is a 15 degree inverted cone of 1/4" copper tubing with 1/4" spacing (about 10 turns tapped at 8). The support for the coil is a wooden frame about 18 inches high on casters for easy movement. There are three safety gaps, two formed by bolts on the doorknob EMMC bank, and one on the "supply panel" where two RF chokes (each 100 turns #22...
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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