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Re: [TCML] ferrite variac
Ok, I think I am going to give it a go and see how I do. How did you make your slider?
-------------- Original message --------------
From: Finn Hammer <f-h@xxxx>
> There are silicon iron cores and ferrite cores, all for a reason.
> Iron cores to cater for the demands that are presented in a low
> frequency environment, ferrite for the higher frequencies.
> Iron won`t do at RF, and ferrite will perform poorly at 50-60Hz.
> Take it from this list member, who has actually built a variac himself::
> It`s only worth it if you really like to practice winding technique, and
> do it over and over until it looks half decent.
> If your main goal is to vary voltage, boy one at Ebay. :-)
> And you definitely don`t want to put it under oil.
> Cheers, Finn Hammer
> jhowson4@xxxxxxxxxxx skrev:
> > yea I thought of that but this is all I have so once i get this to work for
> free maybe I will pay for a core from a junk yard or something later. basically
> I want to see if I can actually make it work first.
> > all i have is 21 gauge wire. At the moment. Do you guys think it would be a
> good idea to submerge it in oil.
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