Some interesting transformer experiments ...

[DeepCut]

http://www.youtube.com/user/Raselli1#p/u

Gary.

[SchubertReijiMaigo]

Very interesting --> pulsed DC transfomer, Kunel patent, Leedskalin PMH, variable reluctance phemomena in action !!!
Note: the experimenter use Ammeter not a digital, to reduce measurement errors due to the spike and square pulse.

[the_big_m_in_ok]

Very interesting --> pulsed DC transfomer, Kunel patent, Leedskalin PMH, variable reluctance phemomena in action !!!
Note: the experimenter use Ammeter not a digital, to reduce measurement errors due to the spike and square pulse.

You're right.  It was analog, with a needle that pivoted.

The needle didn't move much, but it wasn't a very big light bulb, either.  Maybe his next experiment could use a bifilar wound coil?

--Lee

[Nali2001]

Interesting thing is also, what (and how) is causing the output in transformers if you think about? In generators we want the fields of the magnets to 'cut' the coils. Or wipe the magnetic field over the coil, you know good magnetic interaction. But in transformers 95% of the field is contained in the core all the time and still the secondary 'generates' an output just fine. And in the video there is a huge distance from core to coil. So the secondary coil is not exposed to any magnetic field at all. Well maybe some 1% leak magnetism but still food for thought.

Video:
http://www.youtube.com/watch?v=XsrbaCJo3Qw&feature=related

[mikestocks2006]

http://www.youtube.com/user/Raselli1#p/u

Gary.

Hi Gary, Nali2001, interesting videos ,thx for posting.

In these experiments, from the same person,
Part1 http://www.youtube.com/user/Raselli1#p/u/5/SHbQXnXK6Xc
and Part2 http://www.youtube.com/user/Raselli1#p/u/4/BsN2sr3U0PY

It would also be interesting to see the behavior if the cores are made of non electricaly conductive material, eg soft ferrite. Is it the grain domain orientation, electric conductivity or both?