Tesla coils are found to be much useful alternative source for generating electrical energy. This provides a way to produce some free energy to power your house. Well many are amazed as how this tesla coil is ready and the answer is here. There are truly kits obtainable in the market that can be used to build a tesla coil.  A tesla coil in general employs a medium to a high voltage power source wwith one or more high voltage capacitors and also a spark gap that is required to excite the many layers of the main inductor with the periodic bursts of high frequency existing. Resonant inductive coupling excites the multiple layers of the secondary transformer. It  consists of a top terminal that is in the shape of a toroid that are basically covered with hemispherical plates.the outer floor of this conductor is place where the electrical charges are largely accumulated. This design helps in generating high voltages without corona. But in the modern days usage of ignite gap is avoided.     It is also possible to build your own tesla coil that costs not more than 25$ with the help of your junk yard materials. The main needs that helps you in creating your coil are as follows:primary power source attained from modest neon sign transformer.Discharge capacitor from High-voltage tv capacitorsspark gap made from a Pair of 1/4-in. bolts and nutsprimary coil got from lamp shade and electric cord from a humidifierSecondary coil made from Cardboard tube and micro wave fan wireSecondary grounding with the help of Metal spike pounded into the groundTorroid is made from two stovetop grease catcher pansChokes obtained using two Bic pens and wire from a RC car tossed away    With these materials it is much so easier to build your own tesla coil that is able to power up your house.