Some Bifilar coil experiments

[Belfior]

I saw a chinese guy having a Tesla coil inside a copper tube. Coils do not touch the tube. He had 2 diodes coming from the tube to a cap and the second leg of the cap going to ground. Diodes were setup like a rectifier so one let through positive and the other let through negative.

When he blasted the spark gap he got 800 volts to that cap.

This seems like his setup, but with coils and not a tube

found it!

https://www.youtube.com/watch?v=WJUfj53geBo

[PolaczekCebulaczek]

I saw a chinese guy having a Tesla coil inside a copper tube. Coils do not touch the tube. He had 2 diodes coming from the tube to a cap and the second leg of the cap going to ground. Diodes were setup like a rectifier so one let through positive and the other let through negative.

When he blasted the spark gap he got 800 volts to that cap.

This seems like his setup, but with coils and not a tube

found it!

https://www.youtube.com/watch?v=WJUfj53geBo

yeah I saw this video long time ago and its quite interesting, capacitors are connected to copper tube through diodes and that's it (cap does not have any ground-earth wire) tesla secondary bottom wire and upper wire goes to earth (is the earth needed for this ?) tube could act as inductor but it should not charge capacitors just like that.

I have notice something similar, I connected one end of flyback HV output to aluminum tube, this tube is inside a plastic tube and I glued some aluminum foil on plastic tube. When i touch a Led to aluminum foil and when second leg of led is connected to earth (or any metal object) Led light's up very brightly, I already burned out 5 leds by playing with this setup, also led does NOT FLICKER and works in any polarity.

[evostars]

I made a video explaining how to easily make a bifilar coil from speaker wire, and how the fields are situated:

https://youtu.be/ZKP9Bgpqa5E

You can stack several of these in parallel, and increase capacitance.

[sm0ky2]

Has anyone experimented with passing permanent magnets
Over a bifilar pancake coil, as generation?

Or is this best done perpendicular?

[evostars]

Has anyone experimented with passing permanent magnets
Over a bifilar pancake coil, as generation?

Or is this best done perpendicular?

Take a look at skycollection's youtube channel, he uses them, as a motor, and as a generator:
https://www.youtube.com/user/skycollection

I've been looking into axial brush less pulsed DC motors. like this one:
https://youtu.be/k-dgtUXvRIs
The coils of these coils, can be made from stacked bifilar coils.
And the back EMF can be reused, aswell as with regenerative braking, the capacitor/batteries can charge again.
If the motor would be high speed, very high speed, It might be possible to run them with resonant coils.
But I think that's not really realistic, as the frequencies (motor speed/resonant frequency) are to far apart.