RE: Need Formula for length of spiral

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "David Thomson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dave-at-volantis-dot-org>

Hi John,

If you are going to wind a spiral coil with no inner radius, the wire length
is simply the circumference at the average radius times the number of turns.
If you are trying to figure the wire length according to quarter wave, you
make the wire length one fourth of the wave length.

Dave

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Wednesday, February 13, 2002 5:46 PM
To: tesla-at-pupman-dot-com
Subject: Need Formula for length of spiral


Original poster: "John Tomacic by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<tesla_ownz_u-at-hotmail-dot-com>

Hi everyone,

Does anyone have a formula that I can use to calculate the length of wire
required in a flat spiral coil? I have the formula for inductance, however,
I really need the wire length.

Thanks,

John
SST coiling in Ottawa.