Re: [TCML] more on paralleling

[Jim Lux <jimlux@xxxxxxxxxxxxx>]

On 12/9/12 3:09 PM, Jon Danniken wrote:
> I also used MOT cores.  One concern I have is in wrapping the wire
> around the sharp corners of the core, especially should the wires head
> up and cause the insulation to become soft.   This could, I believe,
> lead to a failure in the insulation, resulting in a blown fuse and the
> requirement of a rewind of the cores.
>
> An ideal solution for this would be to use the kind of "paper" that is
> used when originally winding a MOT (or other transformer).   I do not
> know what the name of this kind of "paper" is, but it is very tough,
> thick, and highly tear resistant.

Kraft paper? (like the heavy brown stuff used for wrapping packages.)
There's also various synthetic materials that have been used.  For 
instance, you can get fiberglass tape.  In fact, the fiberglass 
reinforced packing tape might be usable (depending on how hot the core 
gets).

You could probably use the moderately thick teflon tape used for pipe 
threads (the pink stuff, not the real thin white stuff).



> Jon
>
>
> On 12/09/2012 10:42 AM, Teslalabor wrote:
> > I used MOT cores for this, they are perfect for this job.
> >
> >
> > ----- Original Message ----- From: <jhowson4@xxxxxxxxxxx>
> >
> > > Hey all,
> > > Out of curiosity what cores are you guys using for your chokes, the
> > > original post mentioned using a large old variac core but you should
> > > really not need one that big.
>
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