The Gabriel Device, possible COP=8

[Mavendex]

as well the M-416 won't fit in the outer core Im having produced the inner core is too small with wire on it....

M-417 will... I hope they do exchanges

[captainkt]

Hi, I hardly ever post but tried Gabriel coil and followed to the letter, (the factory next door to me spins steel donuts ). I found no OU just a transformer, the toaster is probably 1kw like mine so watts in were 1350 on monitor  bulbs on secondary 350W and second monitor reads 347. I was well disapointed .
Keith

[ramset]

Keith
can you post a pic?
Thanks
Chet
PS
Mavendex
Thanks for the "Man Up" !!
These "Bumps in the road" seem to happen sometimes despite our best intentions!!

[wayne49s]

its M-417 200od x 175id x 30tall mm

again im truly sorry about this

These things happen; so just chalk it up to experience; won't make much difference in the long run. 
I talked to the person that handle my order, and he will take back the core assuming it is undamaged.

/Wayne

[wayne49s]

I was considering doing the center tap for both...
The original post says 1000' on the inner secondary and 800' on the primary. Are we still at those numbers if we use 16AWG?

I think that was what was mentioned, but not clear if the OU was confirmed with those new turn numbers. From the discussion on this thread and the Tesla info, my understanding of how it works is that the outer core needs to be operated in a saturated mode (in part of the sine wave cycle), so that some of the flux gets to the secondary. The secondary flux gets contained mostly to the inner core due to the higher permeability, and is also shielded somewhat by the outer core, so only a fraction of the BEMF reaches back to the primary coil, allowing for the OU characteristics.  Now the number of primary turns impacts the inductance and the outer core saturation, so this is important according to the above understanding; some experimentation may be required here to optimize the OU.

/Wayne