[TCML] primary material? (interview)
bartb at classictesla.com
Thu Jul 17 18:52:04 MDT 2008
Yes, all metals are up in price everywhere. It makes choices more
difficult. Copper is up about 50 cents/lb as well as aluminum. The
difference is $4/lb with copper versus say $1.50/lb with aluminum (just
looking at scrap rates). Anyway, you could build the primary with
aluminum tubing. It's sold in the hardware stores also and is certainly
Nicholas J. Goble wrote:
> I'm on the last component of my coil right now: the primary. I've done
> a few calculations and found myself needing about 40' of 1/4" copper
> tubing. I took a trip to Lowes and stumbled a little when I saw that
> the price was $20 for 20'. Maybe that seems about right, but I really
> don't want to spend that much. Any suggestions on how to find it
> cheaper? Are there any alternatives to using copper tubing? I've
> heard that some people use heavy wire or even magnet wire? Does that
> work well? What are my options?
> Thanks for all your help. Here's a funny story.
> After obtaining my NST for free from a sign shop in Indianapolis (where
> I live), I decided to write a positive Angie's List post for the shop.
> This was about a month and a half ago. I was contacted this morning
> from a journalist for the monthly Angie's List magazine/journal. He
> wanted to ask me a few questions about why I'm building a coil and how.
> I haven't even completed building the thing yet! Anyways, he asked me
> if I got help or advice during construction, and I told him about TCML.
> Maybe we'll get mentioned in the Indianapolis area publishing.
> Nicholas Goble
> Tesla mailing list
> Tesla at www.pupman.com
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