How much does it cost to build a Tesla coil?
Cost will depend on many factors, mostly how much you can salvage. Used NSTs are often much cheaper, sometimes even free. MMC caps, magnet wire, good PVC and dryer duct are all difficult to salvage and will probably have to be bought new. A small coil can be built for under $100. A large Tesla coil with “nice” parts can cost several hundred dollars.
