[Amps] Removing enamel insulation?

[R.Measures]

On Feb 20, 2005, at 3:28 PM, Bob Maser wrote:

> On the flip side of the coin,  I have some Formvar coated wire that is 
> at
> least 15-20 years old and I find that if I try to wind it into a 
> diameter
> smaller than 1" it cracks the formvar coating.  Is there any thing 
> that I
> can do to this wire to recondition or soften it up?

Formvar is history.  Recycle it and buy some modern, silicone-varnished 
200ºC Cu wire from an electric motor rewinding shop.  Bring your own 
empty spool and winder - unless you need a 35-pound roll.

>  I don't really think
> that it hurts unless I am trying to wind a tightly spaced coil but it 
> still
> looks like s--t.
>
> Bob  W6TR
> ----- Original Message -----
> From: "DaleLeStourgeon" <dlestourgeon at cox.net>
> To: "Joe Subich" <joe at subich.com>
> Cc: <amps at contesting.com>; <topband at contesting.com>
> Sent: Sunday, February 20, 2005 1:51 PM
> Subject: Re: [Amps] Removing enamel insulation?
>
>
>> There was an article a while back in Electric Radio that recommended
>> using an asprin, solder, and soldering iron all together. Supposedly
>> takes off the enamel and tins at the same time.
>> 73
>> Dale K5AJZ
>>
>> Joe Subich wrote:
>>
>>> Does anyone have a good way to remove enamel (Formvar?) from thin 
>>> wires?
>>> Scraping/sanding works fine for large wires but doesn't work too well
>>> for thin wires.
>>>
>>> Is there a chemical that will do the job (dip/wipe)?
>>>
>>> I'm looking to wind some small toroid transformers (receive/low 
>>> power)
>>> and need to strip the wires close to the core after I have would the
>>> transformer.
>>>
>>> 73,
>>>
>>>   ... Joe, K4IK
>>>
>>>
>>> _______________________________________________
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>>> Amps at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/amps
>>>
>>>
>>>
>>>
>>
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>
>
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>

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org