Before starting it’s good to know that Tesla Coil is not a toy at all and can be very harmful. When you power on DO NOT TOUCH IT WHILE ON UNDER ANY CIRCUMSTANCES. We don’t take any responsibilities for hurting yourself or others while building this machine. In this tutorial you will learn how to build yourself a TESLA COIL.
Step 1 – Gather all the materials needed to build a Tesla Coil
Total can go up to $30
As for the Secondary Coil:
A length of 1.5″ PVC (if is longer is even good)
About 300 feet of 24 AWG copper enameled wire
1.5″ PVC screw-thing (as in pictures)
1.5″ metal floor flange with threads
Spray on enamel
Circular, smooth metallic object for the discharge terminal
Base and Supra-base
Various pieces of wood
Long bolts, nuts, and washers
About 10 feet of thin copper tubing
6 Glass bottles (Snapple bottles is recommended)
Oil (I used canola. Mineral oil (horse laxative) it preferable as it doesn’t mold.)
Lots of aluminum foil
And a HV power source such as a NST, OBIT, or other transformer that gives off at least 9 kV at around 30 mA.
Step 2 – Start building the secondary
Make sure to wrap one end of the wire around. Slowly and carefully begin to wrap the coil, making sure that you don’t overlap wires or have spaces. This step is the most difficult for many of you and most tedious part, but taking a lot of time will yield a very nice coil. Every 20 or so turns, put a ring of masking tape around the coil to act as a barrier if the coil starts to unravel. Once finished, wrap a tight piece of tape around the top and bottom of the coil and spray it with 2 or 3 coats of enamel.
Step 3 – Prepare the Bases and finish the Primary
On this step you should align the metal stand in the center of the bottom board and drill holes for bolts to go through, after that attach the bolts upside down. This will allow to put a base for the primary on top of it. Then bolt the primary’s base in. Take your pipe and wind it into a pretty upside down cone (not the flat spiral in the pictures). Then mount it on the supra-base.
Step 4 – Build yourself capacitors for Tesla Coil
This can be a tricky part if you don’t know exactly what you’re doing. Please pay attention when building the capacitors using salt water, oil and aluminum foil. You should wrap the entire bottle in foil, and fill the bottle with water. Pay attention to the quantity of water. You should have equal amount of water in each bottle. It will keep the power output at the same level. The maximum amount of salt you can put in the water is .359 g/mL, but this ends up being a lot of salt, so you can tone down the amount a lot (I used 5-6 grams). Just make sure that you use he same amounts on salt and water. Now put a few mL of oil slowly into the bottle. Punch a hole in the top of the cap and put a length of wire in it. You now have one fully functioning capacitor, go make 5 more.
Step 5: Wrap Everything UP
Step 7: See the Tesla Coil in action!
For the first run, if you’re not sure of what you’ve made, please go with the entire machine outside and take all the necessary precautions to avoid putting yourself or others in danger. Now, toggle the device on and enjoy the light show.