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Old 27th November 2009, 12:16 AM   #311
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Acetone?

dave
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Old 27th November 2009, 01:13 AM   #312
gootee is offline gootee  United States
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Laquer Thinner?
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Old 27th November 2009, 01:30 AM   #313
GK is offline GK  Australia
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Is that what you guys are sniffing?
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Old 27th November 2009, 01:40 AM   #314
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Quote:
Originally Posted by Carlp View Post
OK, some time ago I bought a few feet of Litz wire to try this tweek. Built two nice looking red loops per instructions, but then I couldn't figure out how to burn off the enamel to solder the ends together. Any suggestions? My 100 watt soldering gun didn't work (but I didn't try to burn off the enamel on each individual strand). Project died at that stage as I had other projects on the bench. Any suggestions?
G'day Carl.

Soldering irons won't do it properly and it's impractical to burn individual strands.
You need some serious heat to make these properly.

My very dodgy and not recommended approach: folded an old metal spoon into a tube shape using a bench vice and a hammer. It's held firmly in the vice and heated using a hand held propane burner.

** Make sure you cut off the ends of the loops as per Bud's instructions.

When the solder is hot enough, dipping the tail into it burns the enamel off with a considerable puff of smoke.
Safety glasses are mandatory and breathing the smoke is not a good idea either.

I'll try and post some pics tonight.

Cheers,

Alex
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Old 27th November 2009, 01:45 AM   #315
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Quote:
Originally Posted by Alex from Oz View Post
...and breathing the smoke is not a good idea either.
But that's half the fun...
I just use the flame from the propane torch to burn off the varnish - quick, painless and easy.


NOT that I make these silly things
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Old 27th November 2009, 01:56 AM   #316
chrisb is offline chrisb  Canada
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well, isn't that what solder pots are for?
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Old 27th November 2009, 02:20 AM   #317
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Quote:
Originally Posted by Carlp View Post
OK, some time ago I bought a few feet of Litz wire to try this tweek. Built two nice looking red loops per instructions, but then I couldn't figure out how to burn off the enamel to solder the ends together. Any suggestions? My 100 watt soldering gun didn't work (but I didn't try to burn off the enamel on each individual strand). Project died at that stage as I had other projects on the bench. Any suggestions?
The pros use a solder pot for that. The rest of us cry.
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Old 27th November 2009, 04:16 AM   #318
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Quote:
Originally Posted by MJL21193 View Post
But that's half the fun...
I just use the flame from the propane torch to burn off the varnish - quick, painless and easy.
I tried that, but all the cut ends frayed.

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The pros use a solder pot for that. The rest of us cry.
I wish I could afford one!
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Old 27th November 2009, 08:43 AM   #319
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I scraped each strand's end with a knife before assembly, but that is not a quick way to do it!
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Old 27th November 2009, 07:12 PM   #320
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With really fine wire a solder pot is the only way to go. Also try to find some of the Kester alcohol based liquid flux. Using isoprpyl 99.9% pure alky make a weak tea colored solution using a lot more alky than called for in the brochure. Dip the wire ends and right into the solder. The alky will ablate the insulation and the wires down inside of the packet will be as clean and well soldered as the outside. Kester will very often provide a free sample of their chemicals if you can represent yourself as a company looking for a solution. Solder pots can be had for less than $100.

Bud
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