Litz wire, anybody?

[Mike(Mont)]

Yeah, the latest coil works good. I also found out it has a sharper null than the big loop I first built. I like the null and i was using it today as well. I check for the target then turn the coil 90 degrees and see if the null lines up the same. Sort of a double check. I also found out I get a better null when i get somewhat closer to the transmitter but not too close, like about two feet away. So the next step is to start putting everything into an enclosure, well actually I need to find an enclosure first. But anyway it is to the point where I don't want to mess with it...well, at least for today!

[Mike(Mont)]

Well, my sanity was short-lived. back to business as usual. Got another coil design (spiral) I want to build just so I won't fret about never trying it. So hopefully I'll get one built and tested today if I can figure out how to build it. Going to try to put two flat pieces together with a very small gap and just wind the wire in between. The idea is to avoid all the messy glue required. Nothing is as easy as it first appears.

[Mike(Mont)]

Somebody help me! I hopelessly obsessed. Well, I scabbed together a spiral coil, hooked up, and I like the way it points, very narrow signal. It does not have a sharp null but I guess I can't be greedy and that might be because it is not tuned right. My system is apparently different than all the pistol detectors. I point to the target by the plane of the windings (that's the magnetic component), while the broadside gives me the null. It's a little bit weak but very sharp, (whereas the null is too wide for my liking). So I might try to modify it like i wish I could use some flat ribbon for the windings to get a little more solid signal. Don't even know it that will work. But I'll leave that for another day, maybe. So the answer is "No. I am not done yet." Ouch!

[Mike(Mont)]

I seem to have lost my enthusiasm for the flat spiral coil. Kinda like those gold rush 49'ers, when they hear about a new gold strike they leave their profitable diggings in hopes of something better. Got one more idea to try. Well, at least one more.

[Mike(Mont)]

Got some thinner Litz wire. I read somewhere to use 15/46.

[reza vir]

Litz wire is a type of cable used in electronics to carry alternating current. The wire is designed to reduce the skin effect and proximity effect losses in conductors used at frequencies up to about 1 MHz. It consists of many thin wire strands, individually insulated and twisted or woven together, following one of several carefully prescribed patterns often involving several levels (groups of twisted wires are twisted together, etc.). This winding pattern equalizes the proportion of the overall length over which each strand is at the outside of the conductor.

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