[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Large Toroid? (fwd)
Original poster: Gerry Reynolds <greynolds@xxxxxxxxxx>
---------- Forwarded message ----------
Date: Thu, 21 Dec 2006 07:32:29 -0600
From: David Rieben <drieben@xxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Cc: David Rieben <drieben@xxxxxxxxxxxxxxx>
Subject: Re: Large Toroid? (fwd)
Dr.,
Actually, I simply used the exterior application
of the aluminum duct tape to join the ends together.
I ended up with a couple of layers of tape over
most of the toroid's surface. I used the heavy
duty 3" wide Nashua aluminum duct tape and a
couple of layers of this over the toroid's surface
also contributes to additional dent resistance.
David
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, December 20, 2006 8:00 PM
Subject: Re: Large Toroid? (fwd)
> Original poster: Gerry Reynolds <greynolds@xxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Wed, 20 Dec 2006 16:50:40 -0700
> From: resonance <resonance@xxxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: Large Toroid? (fwd)
>
>
>
>
> David:
>
> How did you join it together? Wood block or?
>
> Dr. Resonance
> ----- Original Message -----
> From: "Tesla list" <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Wednesday, December 20, 2006 8:23 AM
> Subject: Re: Large Toroid? (fwd)
>
>
> > Original poster: Gerry Reynolds <greynolds@xxxxxxxxxx>
> >
> >
> >
> > ---------- Forwarded message ----------
> > Date: Wed, 20 Dec 2006 07:43:16 -0600
> > From: David Rieben <drieben@xxxxxxxxxxxxxxx>
> > To: Tesla list <tesla@xxxxxxxxxx>
> > Cc: David Rieben <drieben@xxxxxxxxxxxxxxx>
> > Subject: Re: Large Toroid? (fwd)
> >
> > Hi Greg,
> >
> > I built that toroid from a 30' length of 12" diameter super-
> > flexible stretch and compress aluminum duct hose (part #
> > 5525K49) from McMaster-Carr (www.mcmastercarr.com)
> > It comes VERY compressed to only about 36" legnth IIRC
> > and actually has a bit of weight to it in the box. It actually took
> > a bit of brute strength to strecth it to the desired form by my
> > self and you would really need a friend to assist in this process.
> > It is more expensive but certainly more dent RESISTANT
> > (not dent PROOF) than the cheaper flex duct that McMas-
> > ter also sells. After forming it into the desired toroid, I wrapped
> > it with Nashua aluminum duct tape, available at Home Depot.
> > IIRC, it took about 3 rolls to complete the job, so at $91+ S&H
> > for the duct tubing plus about $13 a roll for the tape, I have a
> > giant
> > 12 x 56 toroid for < $150 - not quite as pretty as a professionally
> > spun aluminum toroid from O.W. Landergren, but probably about
> > $2K cheaper and it still makes them long sparks! ;^))
> >
> > David Rieben
> >
> >
> > ----- Original Message -----
> > From: "Tesla list" <tesla@xxxxxxxxxx>
> > To: <tesla@xxxxxxxxxx>
> > Sent: Wednesday, December 20, 2006 12:49 AM
> > Subject: Large Toroid? (fwd)
> >
> >
> >> Original poster: Gerry Reynolds <greynolds@xxxxxxxxxx>
> >>
> >>
> >>
> >> ---------- Forwarded message ----------
> >> Return-Path: <tesla-request@xxxxxxxxxx>
> >> X-Original-To: greynolds@xxxxxxxxxx
> >> Delivered-To: greynolds@xxxxxxxxxx
> >> Received: by chip1.pupman.com (Postfix, from userid 550)
> >> id 285FDC5D38; Tue, 19 Dec 2006 21:23:16 -0700 (MST)
> >> X-Envelope-From:dogbrain_39560@xxxxxxxxx Tue Dec 19 21:23:16 2006
> >> X-Original-To: tesla@xxxxxxxxxx
> >> Delivered-To: tesla@xxxxxxxxxx
> >> Received: from unknown-66-196-101-249.yahoo.com
> > (rrr1-v1.mail.re1.yahoo.com
> >> [66.196.101.249])
> >> by chip1.pupman.com (Postfix) with SMTP id AC9FFC5D37
> >> for <tesla@xxxxxxxxxx>; Tue, 19 Dec 2006 21:23:15 -0700 (MST)
> >> Received: (qmail 9557 invoked from network); 20 Dec 2006 03:19:56 -0000
> >> Received: from web57912.mail.re3.yahoo.com (68.142.236.105)
> >> by rrr1-v1.mail.re1.yahoo.com with SMTP; 20 Dec 2006 03:19:56 -0000
> >> Received: (qmail 71778 invoked by uid 60001); 20 Dec 2006
03:19:56 -0000
> >> Message-ID: <20061220031956.71776.qmail@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> >> DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
> >> s=s1024; d=yahoo.com;
> >>
> >>
> >
h=X-YMail-OSG:Received:Date:From:Subject:To:MIME-Version:Content-Type:Conten
> > t-T
> >> ransfer-Encoding:Message-ID;
> >>
> >>
> >
b=iX49FBLg0WvAwfmXSjuJiPYXKHlml2iQtahn8oR5vwf59OBLmjBEXUDHfIx/8jAWMmyG4p4eio
> > D8O
> >>
> >
suFURg4xGP6Ss09S0vdIIhsbzxZvrUk2CL8nGFvhZJdlXxZj9CJ4Vx7DFbxg1CRk9AX5QthRB8KH
> >> 157F3Ms/mU/5SbM4W0=;
> >> X-YMail-OSG:
> >>
> >
pQD12A8VM1lCHUUVwHyeOUoTcmiGXLH9bv4YYYJGjj5EDrX0npq1k5tkN0sM7eodP.3WfHYKV04P
> >> _K9KbooZqsEIob2S0M78Gp1iUCUvBHVPP9YYp370
> >> Received: from [24.117.187.199] by web57912.mail.re3.yahoo.com via
HTTP;
> > Tue,
> >> 19 Dec 2006 19:19:56 PST
> >> Date: Tue, 19 Dec 2006 19:19:56 -0800 (PST)
> >> From: G Hunter <dogbrain_39560@xxxxxxxxx>
> >> Subject: Large Toroid?
> >> To: tesla@xxxxxxxxxx
> >> MIME-Version: 1.0
> >> Content-Type: text/plain; charset=iso-8859-1
> >> Content-Transfer-Encoding: 8bit
> >>
> >> David,
> >>
> >> Regarding your big, impressive coil at:
> >>
> >> http://www.teslauniverse.com/members/drieben/
> >>
> >> Where did you get the big torus? Did you buy it or
> >> build it? Can you describe its construction?
> >>
> >> Cheers,
> >>
> >> Greg
> >>
> >> __________________________________________________
> >> Do You Yahoo!?
> >> Tired of spam? Yahoo! Mail has the best spam protection around
> >> http://mail.yahoo.com
> >>
> >>
> >
> >
> >
> >
> >
>
>
>