Re: Secondary form idea?

["Jim Lux" <jimlux-at-jpl.nasa.gov> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

I haven't tested it or have any basis for my statements other than gut
feel...

Glass, as a class, is somewhat RF lossy.  However, the glass they wind the
tank with may be fairly good quality (it has to be, to be able to be spun
into yarn).  I would imagine the lossiness to be around that for G10 or
comparable composites.  At the 100 kHz kinds of frequencies, then, it is
just fine.
-----Original Message-----
From: Tesla list <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Friday, July 14, 2000 10:46 AM
Subject: Secondary form idea?


>Original poster: "Don Maxbauer" <dmax-at-maxace-dot-com>
>
>Hello everyone,
>
>Has anybody tried using a water softener resin tank as a form for a
secondary
>coil?  The construction is very strong, with wound fiberglass cloth in a
resin
>matrix.  They are available used, for free from any water softener
>retailer---just unscrew the valve end and tap the plastic resin beads out!
>Several sizes are available with the most common being 10.25" diameter with
28"
>to 41" windable length.  Would they be any good from the rf standpoint?
>
>Don
>
>
>
>