Originally posted by 7imix
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This has formulae for you hahah.
Power Considerations (Iron Powder and Ferrite)
I'll see if I can track down the iron powder constuction info. You can make them but it won't be compressed.
Tesla used flat iron rings mostly, that fitted inside each other and were insulated from each other, I was also reading that he sometimes used the transformer itself to heat treat the core to improve it's performance. Of course air will work better at freaky frequencies, but at only normal high frequency gains would be much better with iron powder, I can clearly see the difference with the little iron powder straight core's I use in my desulfator.
Tesla would have loved compressed powdered iron core's and I would not be surprised if he actualy came up with the idea, but never worked out how use it.
Cheers
Edit.... this guy who wrote this PDF seems to know what he's talking about, i'm not sure I understand all of it but it sounds good in theory. And his name is Bruce so I think we can trust him.
http://www.micrometals.com/appnotes/...oads/id4hf.pdf
Some patents...
Tesla Toroid -
http://www.pat2pdf.org/patents/pat382282.pdf
This one is Labeled "Best Availiable Cop" Just like the "Dynamo Electric Machine" Patent Which includes the toroid.
http://www.pat2pdf.org/patents/pat583953.pdf
This is the Dynamo Electric Machine. Nice!!!!
http://www.pat2pdf.org/patents/pat390721.pdf
http://9xebdw.bay.livefilestore.com/...721.png?psid=1
Just thought I would pop those in there. Just click on the file to download them or all the patents can be found here- Also check out the drawing on the right hand side of the page with the Phases of the transformer.
Directory:Tesla's Patent List - PESWiki
Transformer phases, does anyone know how to embed this picture in a post ?
http://peswiki.com/images/a/a7/RMFpatent.png
Anyone recognise anything on the bench in this photo, I do. I think. A couple.
http://9xebdw.bay.livefilestore.com/...ion.png?psid=1
7imix, I almost forgot the point to what i was doing sorry, In the Toroid patent you can see he actually used soft iron wire or "rod" in that drawing for the core material, But ! each ring is individual and insulated from each other aswell. I'm almost certain of it.
Ok so I just lashed out and bought this one. I'll have to try to remember not to measure voltage with it.
20 Range Digital LCR Inductance, Capacitance Meter (eBay item 330489919559 end time 26-Jan-11 21:02:40 AEDST) : Industrial
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