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   ContentHTML : '<font face=\"Arial\" size=\"2\">This device is a spark driven Tesla coil generating very visual and audible 30 to 36 inch sparks into open air without a return contact.  <p>  The unit operates from a standard 3-wire 115vac wall outlet requiring less than six amps. The circuit uses (4) 4 Kv 30 ma current limited transformers providing 8000 volts at 60 ma. <b>This value is above the lethal value of 50 ma and we cannot stress the importance to use caution when testing and adjusting.</b>  <p>  This Tesla coil can be operated on a tabletop. It is built as a two-level assembly consisting of a clear plastic top piece and finished plywood bottom section. The top section supports the vertical mounted secondary output coil and the flat Archimedean spiraled primary along with a tunable clip lead. The bottom section supports the transformers, capacitor and spark gap assembly attached by machine screws and nuts.  <p>  A metal control panel is connected to earth ground along with the secondary output coil return, reducing line voltage shock hazards. The spark gap is air cooled with a high output muffin fan and uses three pure tungsten electrodes rarely requiring cleaning or dressing. Hardware is all brass where required with the primary coil being all copper tubing.  <p>  The kit contains a pre-wound and fully prepared secondary coil and all parts to complete the unit, including a 12 x 3 inch toroidal terminal which greatly adds to the performance and overall appearance of the completed system.  <p>  <b>Hazards:</b><br>  115vac line powered, requiring caution in assembling and testing. The output of the transformers can give a very painful shock and burn with possible electrocution as the short-circuit current is 60 ma.  <p>  The output spark from the secondary can be contacted with a moderate shock by firmly holding a metal object and drawing the spark to it. Not advisable for the inexperienced.  <p>  The Tesla coil must not be operated in a flammable atmosphere or near sensitive electronic equipment.  <p>  <b>Size:</b><br> Base section is a 16 x 16 x 8\" with the 4.5\" OD x 20 \" output coil. Weight is 33 pounds.  <p>  <b>Assembly:</b><br> Mostly mechanical assembly with some soldering  <p>  <b>Applications:</b><br> Use as a science project, museum display, special effects prop, and for electrical research of high frequency electricity. <p> </font>', 
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