Joule Ringer!

[lanenal]

I asked John to make sure there was no mistake , NS for Nathan Stublefield Coil.

You need the good iron .

Mark

So John simply would a traditional coil but with soft iron wire, correct? Or do you mean there is a complicated design? If it is complicated, there maybe something in it that can be explained by the traditional theory. Anyway, a design is highly welcome.

lanenal

[Mk1]

So John simply would a traditional coil but with soft iron wire, correct? Or do you mean there is a complicated design? If it is complicated, there maybe something in it that can be explained by the traditional theory. Anyway, a design is highly welcome.

lanenal

Yes its only a iron coil , but to have the effect of the bifillar coil on the joule ringer you need a iron copper pair. Traditional thinking is not a problem here once you know that both coil will have opposed field.

Mark

[lasersaber]

How to build the Joule Ringer transformer:

http://www.youtube.com/watch?v=PVWFlpRmLkE

[e2matrix]

Thanks for the update and directions lasersaber.  Looks like you've really got it dialed in.  Are you still using the Fuji transistor?

[conradelektro]

@lasersaber: thank you for the nice video!

Because I want to wind such a transformer, I made a little drawing. It will serve as a note when winding the transformer.

Please have a look at it, is it right? The free end of the twisted length is embedded in the coil (not connected to any pin)?

What transistor do you use? What is the Voltage of the starting charge of the electrolytic capacitor?

Greetings, Conrad