Re: Toroid Material

["Area31 Research Facility" <rwstephens-at-xxxxxxxxxxxxxx> (by way of Terry Fritz <twftesla-at-xxxxxxxxxx>)]

All,
 
I agree with Weazle that stainless flex is a terrific option for toploads over
the aluminum flex duct!  I obtained a 20 foot contiguous length of 16 inch
stainless steel 'chimney liner' flex duct from the factory that made it a few
years ago for a good price and built a new topload about 80 inches in OD out of
it, but haven't had the opportunity to try it yet. I had a heckuva time getting
this huge 'snake' home on the roof of my Safari minivan with the wind and all. 
It was much harder to shape than the 16" aluminum flex I did my last similar
sized topload out of, but it is noticeably more dent resistant.  Trouble is a
20 foot length of this larger stuff costs about $2000.00 if you have to go buy
it.  I plan to stack this stainless 16" x 80" above the 16" x 72" on my Big Mo'
coil next time out for increased topload capacity.  Fres will drop to about 30
KHz.  Should be fun.
 
Robert W. Stephens
Director
AREA31 Research Facility
AREA31 Radio Observatory
Co-curator
Hangar31 Vintage TV Museum
<http://www.area31-dot-org>www.area31-dot-org
>
> ----- Original Message ----- 
> From: <mailto:tesla-at-pupman-dot-com>Tesla list 
> To: <mailto:tesla-at-pupman-dot-com>tesla-at-pupman-dot-com 
> Sent: Friday, November 17, 2000 13:51
> Subject: Toroid Material
>
> Original poster: "J. B. Weazle McCreath"
> <<mailto:weazle-at-hurontel.on.ca>weazle-at-hurontel.on.ca> 
>
>
> Hi Coilers,
>
> I was at a friends home the other day and the heating man was there
> installing a chimney liner.  One look at it and I saw that it could
> be ideal for making a toroid from.  It's stainless steel, comes in
> four and six inch diameter and appears much more durable than dryer
> vent tubing.  The heating guy said they often have pieces several
> feet or more long left over from jobs that he'd give me for free!
> I'll post my findings once I've scored a length and tried building
> a new toroid for my coil.
>
>
> J.B. Weazle McCreath, VE3EAR      Web:   
> <http://www.solwind.on.ca>www.solwind.on.ca
> c/o Solwind Enerco Inc.,          E-mail:
> <mailto:weazle-at-solwind.on.ca>weazle-at-solwind.on.ca
> 36620 Saltford Road,              Home:   (519) 524-7420
> Aerial Acres, R.R. 4,             Work:   (519) 524-8703
> Goderich, On., N7A 3Y1            Fax:    (519) 524-6108
>
>
>