Re: website

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "S.Gaeta by way of Terry Fritz <twftesla-at-qwest-dot-net>" <sgtporky-at-prodigy-dot-net>

Hi All,

This stuff gave me grief once at work. We had a switching supply that had
bad regulation due to a toroidal choke wound with that "easy solder" stuff.
As Malcolm pointed out, it was bright red in color. I did an autopsy on the
choke and it indeed had shorted turns. The pressure of the turns and the
heat caused the insulation to flow away where it contacted adjacent turns.
>From that day on, I vowed to stay away from bright red wire. A little more
expensive, but Formvar, or "Inverter grade" wire would be the best choice
for coiling. At hamfests I look for that rich golden brown coloration. It
has been my experience that alot of the very dark, almost black magenta type
seems to get brittle with age.

Sue
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, January 11, 2002 10:46 PM
Subject: RE: website


> Original poster: "Malcolm Watts by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>
>
> Hi Godfrey,
>             I'm sure others have the technical name for the
> insulation - I don't recall. The insulation is characterised by a
> pronounced reddish tint and unlike most other "enamels", can be
> directly soldered through. It is soft, melts with some solvents and
> is just a poor choice for most applications I can think of. It fails
> in transformers (both heating and magnetostriction rubbing turns
> together and would never be used in motors of any significant power.
>
>      My experiences with it have not been happy. I'm not saying
> "don't use it", I'm just saying that I wouldn't.
>
> Regards,
> malcolm
>
> On 9 Jan 2002, at 7:17, Tesla list wrote:
>
> > Original poster: "Loudner, Godfrey by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <gloudner-at-SINTE.EDU>
> >
> > Hi All
> >
> > What is self-fluxing wire and why is it not suitable for closewound
coils?
> >
> > Godfrey Loudner
> >
> > > -----Original Message-----
> > > From: Tesla list [SMTP:tesla-at-pupman-dot-com]
> > > Sent: Tuesday, January 08, 2002 10:38 PM
> > > To: tesla-at-pupman-dot-com
> > > Subject: Re: website
> > >
> > > Original poster: "Malcolm Watts by way of Terry Fritz
> > > <twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>
> > >
> > > he is using self-
> > > fluxing wire in closewound coils, not a practice I would follow.
> > > malcolm
> > >
> >
> >
> >
> >
>
>
>