I gather the material for the construction of a / RomeroUK Muller replica.
I'm looking for ferrite coil. Several Russian sites offer ferrites with permeability 400. Do you think it is appropriate for my line? RomeroUK coils are very small, I can not find the same.
Thank you for your help.

Romero fabricated his own coils from sewing machine bobbins and used ferrite rods similar to these-
http://www.newark.com/ferroxcube/rod5-16-4b1/ferrite-rod-16x5mm/dp/63R5826

And his wire was 7 strand, 36awg, litz wire.
http://www.surplussales.com/wire-cable/LitzWire.html

But Zero Fossil Fuel built larger coils with regular, single conductor, magnet wire and still managed to achieve a resonant system.
http://www.youtube.com/watch?v=yoXZHdiMCKE

}:>

Quote from: captainfletcher on November 13, 2013, 03:42:51 PM
I gather the material for the construction of a / RomeroUK Muller replica.
I'm looking for ferrite coil. Several Russian sites offer ferrites with permeability 400. Do you think it is appropriate for my line? RomeroUK coils are very small, I can not find the same.
Thank you for your help.

http://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=48&ND=3&adjacent=true&locale=en_EP&FT=D&date=19660419&CC=US&NR=3247407A&KC=A
Sincerely
              OCL

uh... Ok. I guess I am just going to set this project aside, for now, to see where THIS goes.

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

}:>

Hello all,
After seeing on Youtube romeroUK, I realized that two Hall sensors are not positioned the same way relative to the coil.
One is a little before the coil and the other recess closer to the edge of the stator.
Must pass and repass the film.
On the other hand looking for a supplier of Hall sensors and correspondence, I learned that there are other models and unipolar bipolar. So you have to buy unipolar otherwise nothing will work.
These are very small important details.
Someone of you may have succeeded?
I am somewhat blocked by my budget and I still have about 130 Euros for equipment to buy.
I found the supplier "Mouser" in UK because I order from France and here everything is more expensive.
Do you know of another supplier in UK?
A soon.