Back in the mid-20th century there were chemical strippers for the
enamel on wire. They were probably not too good for the environment
(or even the health of the user) and are no longer being sold, but
they did the job intended. You just dipped the end of the wire into
the "stuff" and wiped the enamel away.
Bob, N7XY
On Mar 7, 2007, at 2:38 AM, Andrew O. Ojwang wrote:
David,
Oh yes this is the 21st Century of course.
Andrew(5Z4FT/KI4LTH)
At 13:30 3/7/2007, you wrote:
The wire used for these toroids is I believe in the category of
"self fluxing" meaning it is designed to dissolve in the presence
of the "high" temperature of molten solder. It is microscopically
thin and the quantity that we work on per hour is very small
compared to an industrial set up where all the right fume
extraction is installed.
Scraping is what we used to do before this was available and I
believe weakens the wire leading to unreliability.
David
G3UNA
>
> From: "Andrew O. Ojwang" <[EMAIL PROTECTED]>
> Date: 2007/03/07 Wed AM 09:32:46 GMT
> To: elecraft@mailman.qth.net
> CC: Al & Dianne Bruce <[EMAIL PROTECTED]>
> Subject: [Elecraft] Stripping Enamel Wire(Toroids)
>
> Hello,
>
> Use a lighted match stick or cigarette lighter to burn away the
> enamel(carefully), then use fine sand paper, and Surgical Spirit
on a
> cloth to clean away the dirt.
>
> Solder wire should have special flux to capture the rest of the
dirt
> to make tinning easier.
>
> You will find that the wires will be easier to tin, after this.
>
> Andrew(KI4LTH/5Z4FT)
> K1, T1, Hopeful
> http://www.qsl.net/5z4ft/index.html
>
>
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