There are two very different kinds of insulation used on magnet wire.
One type, which I presume Elecraft uses, can be stripped with solder and
a sufficiently hot soldering iron. It's also fairly easy to scrape
off. The other, "heavy polythermaleze", or whatever it's called these
days, is practically indestructible. It has to be stripped
mechanically, and even that's hard. I think the copper would melt
before the stuff would burn. Unless you're planning to run your toroids
really hot, it's more trouble than it's worth.
73,
Scott K9MA
On 4/5/2016 17:58, Dauer, Edward wrote:
The ³Blob Method² worked well for me in building the K2 (and now the K1);
but it might be important not to inhale.
At the time I looked into what¹s in the fumes when both the solder and the
enamel coating on the wire are smoking. While I don¹t know exactly what
the coating is on the particular wire supplied by Elecraft, in general
when it¹s vaporized the coating is vile stuff. I set a fan on the
workbench to direct the fumes away from my face; and I still held my
breath for each winding leg. Makes it useful to learn how to do a fast
Blob Strip.
Ted, KN1CBR
Message: 11
Date: Mon, 4 Apr 2016 22:32:59 -0400
From: Don Wilhelm <[email protected]>
To: lstavenhagen <[email protected]>, [email protected]
Subject: Re: [Elecraft] K1 (still) a classic!
Message-ID: <[email protected]>
Content-Type: text/plain; charset=windows-1252; format=flowed
LS,
There is a "secret" to soldering the grounding wires to the base of the
crystals.
. . .
It is easier for me than stripping and tinning toroid leads.
73,
Don W3FPR
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--
Scott Ellington K9MA
Madison, Wisconsin, USA
[email protected]
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