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Re: Primary resonators with very low L/C ratio



Original poster: "Alfred Erpel by way of Terry Fritz <teslalist-at-qwest-dot-net>" <alfred-at-erpel-dot-com>

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"... It's obviously impossible to make a [primary] coil with less than one
turn,..."
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On a related topic:

How about (for example) 10 primary coils wound clockwise connected
contiguously with 9 primary coils wound back on top of the clockwise coils
in a counter-clockwise direction for a net primary coil of 1 turn?

In a helical coil they could take up considerable space vertically, but the
net inductance (and coupling?) would appear to be uniformly dispersed over a
large physical area.  Is this something that has been tried or worthy of
trying?

The same idea could be modified to give you very fine control over the
inductance if you devise a way to stretch and shrink one of the helical
coils (a la slinky) over the other one. (i.e. a 10 turn clockwise helical
coil can have the same inductance as a 9 turn COUNTER-clockwise helical coil
which is connected in series on top of it, thereby cancelling out the
inductance to zero, but you could vary the inductance infinitely down to
zero by stretching and/or shrinking the outer coil.)

Regards,

Al Erpel