The bifilar pancake coil at its resonant frequency

[Dog-One]

I'm on board Matt (pun intended) My understanding was high impedance, more turns will get desired effect at a lower frequency, so more accessible.

From my comprehension of what's going on here, spacing between conductors and
perimeter is critical.  What I don't know is if completely flat like a PCB is better than
having the surfaces facing each other--like the way a electrolytic capacitor is rolled.

Evostars was wishing there was a 3D electric field simulator available that could show
how the fields manifest, but without such a piece of software, I suppose we wing-it
for the moment and find out trial-n-error.

Anyway Jim, I'll continue on with a PCB design and post it.  That will give some of
us a reference platform to work from where we can compare notes and focus on the
drive circuitry.

I did notice DogOne made a comment about ribbon cable being no good [and he was sad]

This is not the case at all.

That's good because I now have a bunch of it.

[ramset]

hmm
somebody posted an image which grew the page
anyhoo
here are some interesting control experiments  which Poynt had requested [were actually on  Tinsel's "things to do/Check list " ]


http://www.overunityresearch.com/index.php?topic=3445.msg61765;topicseen#msg61765

respectfully

Chet K

[ramset]

And  poynt's control circuit result is being discussed further

http://www.overunityresearch.com/index.php?topic=3445.msg61775;topicseen#msg61775

[Magluvin]

Had a lith batt pack on charge on my bench and later into the charge I heard a PSSSSSSSsssss.  Went and looked and sure enough 1 of the 18650 cells ruptured and spewed liquid on the bench a bit but that was it. I said, dang I gota get this outside now. I disconnected the charger and grabbed it by the pigtail and got half way to the open garage door..........

Mags

[Magluvin]

Yep. Got me.  Learn new crap every day.    But Im glad it didnt happen on my bench on front of my scope, PS, stereo, bench surface, charger, etc. It was like having like a firework of some kind.  Like 4 road flares 2 in the opposite direction, times 5 on the output, then just flamed for a bit..  lol just noticed I dont have any hair on that arm on most of it below the elbow. Im a freak now.lol

Im doing work for a guy that his business uses these packs of 4 set up for 7.4v series parallel with the safety circuit board on top. This pack was one that we were testing to see if it would take a charge as the charge circuit in the device wasnt charging it.  Ends up it was one of the first ones of the bunch.  Sooo now I am getting a metal cabinet for this stuff for testing and charging. 

An event like that can really make ya an instant critic on lith batts..  Yup

Tesla cars have 444 18650 panasonics in each pack.  I imagine when they go its a bit more, emmm, explosive.

Mags