RE: [TCML] primary tubing

["Reverend Fuzzy" <cmayeux@xxxxxxxxxxxxxxxxx>]

I would also advise to make sure there's
Plenty of anti-oxidant paste (i.e.: penetrox, etc)
on all the connections to aluminum with
anything else, to avoid corrosion.

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of Brian
> Sent: November 09, 2009 10:36 AM
> To: 'Tesla Coil Mailing List'
> Subject: RE: [TCML] primary tubing
> 
> Adam,
> I have no doubt, it should work fine, I do not really see any major increase
> in resistance until the frequency gets near the 1 MHz area. So at these
> tesla coil frequencies there should be no problems if all the connections
> are nice and tight and pretty looking. :)
> 
> --Brian
> 
> -----Original Message-----
> From: Yurtle Turtle [mailto:yurtle_t@xxxxxxxxx]
> Sent: Monday, November 09, 2009 5:13 AM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] primary tubing
> 
> My 14.4 kV 25 kVA pig has aluminum primary and secondary.
> 
> http://classictesla.com/hot-streamer/adam/garage/pig_14.4kV_25kVA_3.jpg
> 
> Adam
> 
> --- On Sun, 11/8/09, Brian <brianv@xxxxxxxx> wrote:
> 
> > From: Brian <brianv@xxxxxxxx>
> > Subject: Re: [TCML] primary tubing
> > To: "'Tesla Coil Mailing List'" <tesla@xxxxxxxxxx>
> > Date: Sunday, November 8, 2009, 4:34 PM
> > Hi Drake,
> >
> > I misspoke and called it anodizing and what I meant was
> > Oxidizing, anodizing
> > is something different that is done in an acid bath
> > oxidizing will happen to
> > aluminum especially if you try to connect it directly to
> > the copper, unless
> > the copper is tinned first, then you can connect them, what
> > we used to do on
> > the larger power transformer is electroplate the copper
> > terminals and then
> > we could connect the aluminum leads of the winding. You
> > will be able to find
> > wire gauge charts all over the internet so you can compare
> > the copper to
> > aluminum for example to replace say 14 gauge copper to
> > aluminum you would
> > need to replace it with at least 12 gauge or bigger to
> > match the same
> > current handling capability.  From the charts you can
> > see the differences in
> > resistance per 1000? for each gauge and from there you
> > can make a good call
> > and what size to use.  But if you were thinking of
> > using ¼? copper tubing
> > for a primary, then step up the size of aluminum to the
> > next size bigger and
> > you should be ok, just pay special attention to your
> > connections and always
> > tin the copper before you put any aluminum to it and you
> > will be fine. I
> > have run thousands of amps between copper and aluminum
> > without any issues as
> > long as all the copper was tinned first; I also tried sonic
> > welding with
> > poor results, so I went back to electroplating.
> >
> >
> >
> > --Brian
> >
> >
> >
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> >
> 
> 
> 
> 
> 
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