[Elecraft] Stripping Enamel Wire(Toroids)

[Bob Nielsen]

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" <ojwanga2 at asme.org>
>> > Date: 2007/03/07 Wed AM 09:32:46 GMT
>> > To: elecraft at mailman.qth.net
>> > CC: Al & Dianne Bruce <dabruce at smnet.net>
>> > 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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