If you have kept an eye on the various photos of Apple-1 posted on the web, people who want to avoid the above perils typically resort to mount hexagonal standoffs as feet. If these are metallic, bad things can happen as the upper left screw hole (near the video connector) is connected...
make the secondary bigger in diameter. Some people have explored the use of heavier wire at the ground end of the coil and fine wire above. The energy wave near the base is composed of high current, low voltage, while the wave at the top is high voltage, low current, so an ideal...