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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! > _______________________________________________ > Tesla mailing list > Tesla@xxxxxxxxxx > http://www.pupman.com/mailman/listinfo/tesla > > > _______________________________________________ > Tesla mailing list > Tesla@xxxxxxxxxx > http://www.pupman.com/mailman/listinfo/tesla > _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla