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Re: [TCML] primary material? (interview)
Hi nicholas, i like the idea in the last post about wrapping your own
wire. but if youre running at low power levels you might be able to
get away with using the four or six gauge grounding wire they sell at
hardware stores. Its pretty difficult to work with but it has been
done before and the last time i looked (its been a while) it was well
under a dollar per foot. Heck, last time i bought some the clerk gave
me about fifteen feet at the end of the spool for free. You might
also look into heavy gauge stranded cabling thats used for autommotive
wiring and jumper cables he you can find it for the right price.
Good luck, and damn those third world countries and their construction
for jacking up our copper prices ;-)
On 7/17/08, Bob Wroblewski <bwroblewski@xxxxxxxxx> wrote:
> Hi Nicholas,
> I made a TC primary with indoor romex 14-2 wire. Here's how: I stripped
> off all the insulation, outer jacket and the white and black leaving three
> bare number 14 wires. Secure one end each of the three wires with a vise or
> clamp to a solid work table. Keep the three wires straight and close
> together and using a drill gun (plug-in or cordless), insert the free end
> of the three wires in the chuck that would normally secure the drill bit.
> With the three bare wires straight and suspended between the anchor vise and
> the drill gun, slowly turn on the drill gun and the three bare wires will
> eventually tightly wrap together forming a wider solid conductor. The
> diameter of the wire bundle is about 0.2 inches. The wire will set together
> and will not unwrap. You will lose some overall length as the wire wraps
> together so if you need 40' then I'd get a 50' box of wire (about $29.
> locally). It's not rocket science, the finished product looks nice and you
> can say that you made it yourself.
> Caution, use eye protection and watch out for kinks and mechanical forces
> stored in twisting wire (keep kids and pets out of the way) when wrapping
> the wire. Keep the wire stored in a loose loop until used.
> Good Luck,
> Bob Wroblewski
> Dracut, MA
>
>
>
> ----- Original Message ----
> From: Nicholas J. Goble <ngoble@xxxxxxx>
> To: tesla@xxxxxxxxxx
> Sent: Thursday, July 17, 2008 1:56:53 PM
> Subject: [TCML] primary material? (interview)
>
> 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
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