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RE: [TCML] Ballast with adjustable Core

Some hardware stores like Lowes or Home Depot sell inexpensive bundles of 6'
(uncoated) steel wire used for hanging dropped-ceilings. 
--Steve Y.  

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of DC Cox
Sent: Thursday, June 26, 2008 9:37 AM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Ballastwith adjustable Core

You can buy 1/8th inch steel rod, usually cut into 6 foot lengths from any
local steel/metal supplier.  Just call a local machine shop and ask them
where they get their steel.  I use a chop saw to cut them up into 18" long
pieces to make up my primary "hash" filters --- use these on both pole and
nst systems.

Dr. Resonance

On Wed, Jun 25, 2008 at 9:48 PM, David Speck <dave@xxxxxxxxxxxxxxxx> wrote:

> Ed,
> You can use the straight parts of scrap wire coathangers if you have the
> patience to collect enough of them.
> If you are in a hurry, many building supply places have bundles of little
> plastic flags used to mark out construction sites, or the perimeters if
> "Wireless [dog] Fence[s]".  Whack off the flag ends, and you will have a
> bundle of 100 fine, pretty straight soft iron wires.  Dip each of them in
> paint to electrically insulate them from each other to reduce circulating
> currents and thus heating.
> You can also go to your local farm supply place and get a thousand foot
> coil of smooth iron electric fence wire for not too much.  To straighten
> clamp one end in a vise and unroll the longest straight run you can make
> your shop.  Grasp the free end with heavy pliers and pull hard.  The
> stretching will straighten the wire effectively before you cut it into
> lengths.
> To straighten short pieces of soft wire, roll them between heavy boards
> till straight.
> HTH,
> Dave
>>    Where do you get soft iron wire these days?????  How do you straighten
>> it?
>> Ed
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