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Optimum Turn-To-Turn Spacing for a Flat Wire Coil




 
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Author Topic: Optimum Turn-To-Turn Spacing for a Flat Wire Coil  (Read 2223 times)
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aa5wg
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« on: May 08, 2013, 08:12:08 AM »

Hi to all,

I read the optimum turn-to-turn spacing for a coil is about the diameter of the wire.

What about flat wire that is wound broadside to the coil form?

Thank you,

Chuck
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KM1H
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« Reply #1 on: May 08, 2013, 10:29:37 AM »

The spacing should be no less than half the diameter, wider is better. Length to coil diameter is also important. Look at the B&W tanks plus various QRO amps using flat strap for 6-10-15M.

Carl
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DMOD
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« Reply #2 on: May 08, 2013, 04:26:38 PM »

If T is thickness and W is the width dimension across the face of the wire, the minimum spacing is usually the W dimension.

Phil - AC0OB
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aa5wg
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« Reply #3 on: May 08, 2013, 05:10:12 PM »

What if the flat wire is 1/16 inch thick and 1/2 inch wide?

Chuck
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KM1H
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« Reply #4 on: May 09, 2013, 09:44:28 AM »

Thickness doesnt matter.

Also asking the same question on several forums at the same time doesnt help.

Carl
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aa5wg
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« Reply #5 on: May 09, 2013, 07:49:26 PM »

Carl,

I agree about double post.  I must have been clicking the mouse to fast.

Chuck
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