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Re: foil-covered inner-tubes for large toroids?
Original poster: DRIEBEN-at-midsouth.rr-dot-com
How stiff is the 12" or 16" duct from McMaster-Carr? If it's
as soft and easy to dent as the standard 4"-8" stuff from Home
Depot or Lowes, I don't think that it would be durable enough.
One drop or bump and it's pretty much ruined. If MM-Carr's is
stiff enough, then that would be an excellent idea ;^)
----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
Date: Wednesday, October 27, 2004 9:05 am
Subject: Re: foil-covered inner-tubes for large toroids?
> Original poster: "Bunny Killer" <bunikllr-at-bellsouth-dot-net>
> YUCK inner tubes suck go to McMaster Carr and get the
> aluminum duct
> pipe ( the same as the 4" stuff at Home Depot) 10 -16" dia yes
> expensive but GAWD it makes a decient toroid ( just a tad less
> pretty than
> a 1000$+++ spun unit for about 75$) I made mine from 3 sections
> of 16"
> tubing at 25 bucks per section ( 75$ + tape ummm 4 rolls)
> total expenditures 100$ .... beats 1000+$
> the 12" at 3 sections should run about 20$ per section... 60$
> tape... 80$ ? or so..
> Scot D