Re: Measurements

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Mddeming-at-aol-dot-com>

In a message dated 1/8/02 10:15:50 AM Eastern Standard Time, tesla-at-pupman-dot-com
writes:


>
> Original poster: "centauri by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <centauri010-at-attbi-dot-com>
>
> When people say they have a 3" coil are they measuring the diameter of the
> secondary or the toroid or what? Thanks.
>
>


Hi Centauri,
Yes, coils are usually described by the nominal OD of the secondary form. For
example, 4" PVC is used to make a 4" secondary, the actual diameter of the wire
coil may be 4.28" etc. Calculations are done with the actual dimensions.
Matt D.