I built a nice performing coil with a 3" diameter grey pvc secondary that
had a 3/4" wall thickness.
Tim Flood
On Thu, Apr 10, 2014 at 7:11 PM, <mddeming@xxxxxxx> wrote:
> PVC is fine for a secondary if it is solid and not "foam-core". Foam-core
> is very light for its size and viewing it from the end looks like Styrofoam
> sandwiched between two thin layers of hard plastic. This type has water
> retention problems. Some pipe colorants contain carbon particles which make
> them inconveniently conductive. I believe the pipe you describe, if solid,
> should work fine. Just remember to remove all lettering and markings from
> the outside of the pipe as the black lettering is usually loaded with
> carbon. Acetone works fine for this, just to it outdoors as the fumes can
> give you a powerful but unpleasant "buzz".
>
> Matt D
>
> -----Original Message-----
> From: David Boyle <twoten@xxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Sent: Thu, Apr 10, 2014 4:59 pm
> Subject: [TCML] secondary tube wall thickness
>
>
> I have a nice long piece of turquoise pvc pipe. It's almost 7" in
> diameter, but the wall thickness is pretty thick at 10mm or a bit over
> 3/8ths. Will the rf losses make this a dud for winding on a secondary?
> And is pvc an undesirable material to begin with? Thanks in advance for
> your help!
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