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| The actual tesla coil I have. I am using my first primary from my first tesla coil. It has 14 turns of copper wire with 3 mm diameter, 1 cm spacing between wires, 6 cm inner diameter. It is tapped at 12 + 3/4 turns. The primary is fixed on a wood support with pieces of thinner copper wire, at the insulated parts of the primary (the red sectors). The secondary is a 1.6" diameter PVC tube, 3 mm thickness and is wired on a lenght of 8" (D/H = 1/5), with approximative 800 turns (thin enameled copper wire with diameter = 0.25 mm). The ends of the secondary are insulated with plasticine (plastilin)-very good insulator. The bottom and top wires are fixed and insulated with adhesive band. I didn't varnish it, but I rubed with wax the PVC tube before wiring. The topload is a 2.2" diameter lighting lamp wrapped in aluminum foil, smoothed then with the back of a spoon. Rising the topload I eliminated the flasovers between the secondary turns, which appeared when I upgraded my power source. With this topload I have massive corona around it with moving sparks on the topload surface (nice look in a dark room) and fat discharges to the ground nails. I can use multiple toploads with different forms for my experiments. You can see them on the left side of the wood support ( spheroid, toroid, semisphere). The TC is grounded at my house water pipe. |