Methods of rectifying One-Wire energy

[Magnethos]

After watching some videos about 1-wire energy transmission (mainly with a Tesla coil or a ignition coil) I want to make a list of the different methods to transforms 1 wire energy into 2 wire energy.

The first I have seen is to use a transformer where the primary is 1 wire and in the secondary you get 2 wires out.

[amigo]

I think as long as you have access to Earth ground you can have two wire out from that single wire feed.

Then there's the AV plug as well...

[Magnethos]

Thanks amigo, (I still remember that I have to reply to your mail)

So you mean that the 1 wire goes to a pole of the light bulb (for example) and the other wire goes from the other pole of the bulb to the earth?

Yes, AV plug is another option.