[Amps] winding plate inductors

[Marc]

L = r2 X  N2 / ( 9r + 10 len )

where:
L = inductance in uH
r = coil radius in inches
N = number of turns
len = length of the coil in inches

----- Original Message ----- 
From: "Partain, Chuck" <Chuck_Partain at maxtor.com>
To: <amps at contesting.com>
Sent: Wednesday, March 10, 2004 13:08
Subject: [Amps] winding plate inductors


>         quick question, where can I find info about the actual winding of
a
> plate inductor.
> I know copper, silver plated, all that good stuff to use but I haven't run
> across (other than winding and measuring)
> any "magic formula" for winding different coil sizes..
>
> when I figure out what I need for a specific inductance on a band, how do
I
> know what to wind?
>
> looked in orr's handbook and the ARRL handbook, not much in there, plus
some
> web surfing...nothing.
>
> help always appreciated.
>
> ~ka1mwp
>
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