[TowerTalk] Coil Formula

[Steve Hunt]

Clint,

About 20.5uH according to the usual formula for solenoid coils.

Steve G3TXQ

W5CPT wrote:
> I picked up a coil wound on a ceramic form Saturday at the West Kentucky Junque-Fest.  I looked for my formula to figure out what I bought but can't find it.
>
> Diameter = 2",  length = 3.5 ",  30 turns close wound of approximately 12 gauge wire.
>
> Anybody got the formula handy?
>
>
> Clint - W5CPT
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