Tesla Circuits

The Tesla coil described here can.generate 25,000 V. So, even though the output current is low, be very careful! The main component is a flyback transformer from a discarded TV. A new primary windin_g is needed. Begin by winding 5 turns of #18 wire on the core. Then, twist a loop in the wire, and finish by winding five more turns. Wrap with electrical tape, but leave the loop exposed. A four-tum winding must be wound over the ten-turn winding that you"ve just finished. ..

Views: 103 | Votes: 42 | Comments: 0 | Rating: 5 | Rank: 5 | Added: Dec 4, 2012 |

Power is fed to transformer Tl, a small neon-sign transformer, which steps the voltage up to about 3000 Vac. The stepped-up output of Tl is fed through L1 and L2 and across Cl, causing the capacitor to charge until enough power is stored in the unit to produce an arc across the spark gap. The spark gap, which momentarily connects Cl and L3 in parallel, determines the amount of current transferred between Cl and L3. ..

Views: 76 | Votes: 25 | Comments: 0 | Rating: 1 | Rank: 5 | Added: Jun 3, 2012 |

Here's something that has always bugged me: light waves are about 5000 Angstroms in wavelength, while atoms are more like 1 Angstrom across. Atoms are thousands of times smaller than light waves, yet atoms obviously interact very strongly with light. How can they do this? Perhaps they get around the problem by employing Quantum Mechanics (photon-physics rather than EM waves?) There must be some explanation...

This is a fun and useful circuit for demonstrating high frequency high voltge. It can produce up to about 30KV, depending on the transformer used. It is cheap and easy to make, thanks to the standard TV flyback transformer used. It can power LASERS (although I have never tried), demonstrate St.Elmo`s fire, and even cause a fluorescent bulb to light from as much as 2 feet away...