" skin effect "

[AK48]

"When current with a high frequency is flowing in a conductor it has a tendency to move along the outside
surface . The higher the fr?quency the more pronounced this effect becomes . This "skin effect" starts become
noticeable above the magic figure of 100 KHZ . according to this theory, which is the best conductor to make a head, i saw that minelab used litz wire ,would a multi-stranded wire do the trick or would someone test different kinds ofconductor or different metals, I have already asked this question to someone for aluminum wire but he replied that we had already tried and that it did not work, so who has a personal experience and can reply ?
thank you

[Carl-NC]

Regular stranded wire does not solve the problem. Litz wire insulates each strand and also has a special weaving to prevent skin effect problems. Skin effect causes the wire resistance to increase with frequency so this is mostly a problem with TX coils used in PI or VLF above, say, 40-50 kHz.

[AK48]

thank you
regards

[AK48]

skin effect

i've gotta Minelab 15x12 Elliptical Mono Commander Coil , i'm gonna try to wind a coil for my white's SMPI original , what do you guess ?

[fo0bar]

I've personally had good success with 0.1mm*100, silk served. While not absolutely identical, this is what I've found to bring results closest to the ML PI coils I've had available to test. Could probably even be better with 80-90 strands, but I haven't tried that.

As ebay & aliexpress links quickly become invalid, I get my litz from aliexpress seller "cltgxdd". You'll need between 20 and 30 metres depending on coil layout and size.

[AK48]

i've got it thank you