Re: [TCML] Ballastwith adjustable Core

[Frank <fxrays@xxxxxxxxxx>]

Go to a decent hardware store and you can get a 5 pound roll of black 
stove pipe wire. This is fire scaled soft iron and makes excellent 
cores .Can cut to any length and cheap.
I even sent a roll to a friend in Germany and he is making Faradiac 
batteries from it and they work great.
Since it has fire scale, you do not need to insulate it.
Just make sure you get the black as they have bright available in some places.
Frank

At 07:22 AM 6/28/2008 -0700, you wrote:

> Ed,
>
> _Florist-wire_ is well suited for good quality cores. Here in 
> Europe/Switzerland the soft iron wires can be obtained from florist 
> shop auxiliary means distributors for little money. They are in the 
> form of bundles of straight wire (diameter 0.5mm, length up to 
> 50cm), colored in green. The color is a sufficant insulation for the 
> purpose of avoiding eddy currents, and there is no need to 
> straigthen and to cut the wires: all one has to do, is to form a 
> bundle of them!
>
> We have made cores for our induction coils out of them:
> http://twfpowerelectronics.com/%7Ekurt/InductionCoils/Homebrew2004/DSCN1647.JPG 
>
> http://twfpowerelectronics.com/%7Ekurt/InductionCoils/Homebrew2004/DSCN1649.JPG 
>
> http://twfpowerelectronics.com/%7Ekurt/InductionCoils/Homebrew2004/DSCN1650.JPG 
>
> http://twfpowerelectronics.com/%7Ekurt/InductionCoils/Homebrew2004/DSCN1652.JPG 
>
>
> Kurt"
>
>    Thanks - excellent suggestion and one I'd never have considered.
>
> Ed
>
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