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Re: PVC pipe
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- Subject: Re: PVC pipe
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Fri, 11 Mar 2005 16:38:33 -0700
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Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>
Yes, we use it for 4" dia. sec coils and wind with #30 AWG for a super 12 kV
60 mA powered coil. Winding length 4.5 x sec. dia.
Sand inside and outside and seal thoroughtly.
> the wall thickness is about half that of schedule 40. Is this type of
> pipe OK to use for the secondary coil? Is it the same as or superior for
> use as a secondary coil? Does it need to be dried and sealed the same as
> regular white PVC? Does anyone know where to get tubing made from
> that are better suited for building coils? Is ABS superior to PVC? Is
> a web site where this kind of information is located? Thanks for any
> I have been planning this coil carefully for a long time and I am trying
> use the best materials I can get for each part of the coil.
> Paul Brodie"
> I once made a 7 millihenry loading coil using a piece of 8"
> thin-walled green tubing a friend of mine picked out of a ditch. The
> stuff wasn't particular round, but the coil came out with a Q of almost
> 800 (at 137 kHz). We didn't dry it out and I suspect it would have been
> susceptible surface breakdown in a TC application, but certainly the RF
> losses were low.