Re: Secondary Internal Gaseous Insulation (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Thu, 20 Sep 2007 11:35:43 -0500
From: resonance <resonance@xxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Secondary Internal Gaseous Insulation (fwd)



Use the green SDR (sewer & drain) --- thinwall and available from a large 
plumbing supply house or plumbing co.


Dr. Resonance

Resonance Research Corp.
www.resonanceresearch.com


----- Original Message ----- 
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Thursday, September 20, 2007 9:01 AM
Subject: RE: Secondary Internal Gaseous Insulation (fwd)


>
> ---------- Forwarded message ----------
> Date: Wed, 19 Sep 2007 11:53:28 -0500
> From: Crispy <crispy@xxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: RE: Secondary Internal Gaseous Insulation (fwd)
>
> Really, I'm just trying to build a bullet-proof coil.  My previous coils
> have all used Sch.40 PVC pipe as secondary formers, but on this one, I'm
> going to use sewer pipe, which is rated at "Gravity Flow".  I'm guessing
> this means that the walls are thinner, and I'm just a little concerned
> about the effects that could have.  I'm planning on preparing the
> secondary in a way similar to what Dr. Resonance suggested in the recent
> thread.  I'll sand it down, coat both the inside and outside in spray
> polyurethane, and add acrylic baffles sealed with silicone near the
> ends.  After being wound, I'll cover it in glyptal and possibly more
> polyurethane spray.  I'm just wondering if there should be something
> else between the two internal baffles.
>
> Thanks for all the feedback,
> Chris
>
> On Wed, 2007-09-19 at 06:45 -0600, Tesla list wrote:
>> ---------- Forwarded message ----------
>> Date: Wed, 19 Sep 2007 08:45:47 -0400
>> From: "Lau, Gary" <Gary.Lau@xxxxxx>
>> To: Tesla list <tesla@xxxxxxxxxx>
>> Subject: RE: Secondary Internal Gaseous Insulation (fwd)
>>
>> Since internal secondary breakdown can normally be avoided simply by
>> keeping the windings on the exterior of the form, I would ask - What is
>> unique to your situation that warrants such extreme measures?  It's
>> simply not normally a problem.  Have you actually experienced internal
>> arcing, or are you just trying to make a bullet-proof coil?
>>
>> Gary Lau
>> MA, USA
>>
>>
>> > > From: Crispy <crispy@xxxxxxxxxxx>
>> > > To: tesla@xxxxxxxxxx
>> > > Subject: Secondary Internal Gaseous Insulation
>> > >
>> > > Hello,
>> > >
>> > > Has anyone ever tried preventing internal secondary arcing by
>> filling
>> > > the secondary with some sort of insulating gas, such as sulfur
>> > > hexafluoride?  I think it would be fairly easy to do so, considering
>> SF6
>> > > would sink and could be sealed in the secondary with baffles.  I
>> just
>> > > can't find a good source for it.
>> > >
>> > > Chris
>>
>>
>>
>
>
>
>