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STEP 1: MATERIALS AND SAFETY

MATERIALS

 

 

Transformer

            Flyback Transformer 15Kv at 15mA

           1x 2n3055 transistor

Heatsink
1x 220 ohm 5 watt resistor
1x 22 ohm 5 watt resistor 
Enamelled magnet wire
Fast diode

Circuit board

Spark Gap

            Pair of 1/4-in. bolts and nuts

Capacitors

            20 Caps of DC voltage rating of 1kV and 0.1µF 

Primary Coil

            10 feet of thin copper tubing

Secondary Coil

            1.5” PVC pipe, length 20”

            24 AWG copper enameled wire- about 300ft

Top Load

            Foam toroid

Plywood

Aluminum tape

Assembly and Miscellaneous

            Plywood for base

            Alligator clips

            Glue

            Tape

            Aluminum Foil

Before you start building, be aware of safety!

 

 

 

 

 

 

Remember to ALWAYS exhibit extreme caution when building and operating a tesla coil. The coil can produce 15kVolts and over 15mA, which can be damaging if come into contact with.

It is important to:

  • Not look directly at spark gap since it produces UV rays that are damaging to the eyes.

  • Have a fire extinguisher handy in case of electrical fire.

  • Wear shoes with thick insulating soles.

  • Hearing protection, since the sparks can be very loud.

  • Always turn off coil before making adjustments.

When testing the coil, I attached a resistor to the end of a piece of wood and made sure to touch the ends of the resistor to the spark gap and primary coil to remove any lingering charge before touching it again. 

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