Posted by Wayne Parham on October 08, 2002 at 16:15:59

In Reply to: MonoPi Experience-The Good, The Bad and The Ugly posted by Luxmanlover on October 08, 2002 at 12:02:38:

Here are a couple of formulas that might help you when winding your own coils:

Single layer coils

L = NR² / (6R + 9X)

where

L = Inductance in microHenries
N = Number of rotations in winding
R = Radius of wire form
X = Length of wire form

This formula is for air core coils only and is accurate within 10%.

Multiple layer coils

L = 0.8NR² / (6R + 9X + 10D)

where the above variables are used and

D = Depth of windings in wire form

This formula is also for air core coils and is accurate within 30%.

• Re: Winding your own - Mover Dave 16:48:58 10/08/02 (3)
  • Here's another - Luxmanlover 19:54:12 10/08/02 (2)
    • Re: Here's another - RJW 20:26:54 10/08/02 (1)
      • Maybe - Luxmanlover 20:43:55 10/08/02 (0)