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Re: Tips DIY for Primo Em172

Subject: Re: Tips DIY for Primo Em172
From: "Mark" seoulgypsy
Date: Sun Sep 16, 2012 7:06 pm ((PDT))
Thanks David,

Yes... foolproof, as in proof to this fool ... Like the flux suggestion and=
 seeing everyone's input has given me a good idea of the goal. To sum up, m=
inimal contact, set up for efficiency, low voltage, low melting point for s=
older, plenty of flux...


Cheers!

Mark




On Sep 17, 2012, at 6:12 AM, "Avocet" <> wrote:

> > Or >foolproof< techniques to make sure I don't?
>
> Mark,
>
> No foolproof techniques but here's a tip or two.
>
> Use a fine tip soldering iron, if necessary filing the tip to a mm or
> so at the tip. Many irons have changeable tips or if not they are
> cheap enough to keep for fine jobs.
>
> Ground the iron body for any soldering to electronic components.
>
> Use an excess of flux. Not foolproof tip but close. :-)
>
> Pre-tin the connectihg wire and add more flux.
>
> Practice on something else first like a dead PCB.
>
> If the iron is too hot and the flux boils off immediately, rest it on
> an aluminium surface, eg bottom of a saucepan.
>
> When you can make a connection in under 1 second, solder the mics.
> Most components are rated to withstand 1 second at solder
> temperatures.
>
> BTW I've just looked at the Youtube tutorial and if any assistant of
> mine ever made a join like that I'd shout. The iron was too hot, he
> soldered with the side of the iron not the tip, took too long, and
> didn't use flux. You could see the cored solder flux boil off before
> it could do much good. Just one of those blunders could wreck a
> capsule. And how would you insulate that join? He also made a mess of
> stripping the insulation. For a neat contact, stroke the insulation
> past the wire, clip through both and when you tin the wire, it will
> shrink back just enough to make a neat connection.
>
> David
>
> David Brinicombe
> North Devon, UK
> Cogito cogito ergo cogito sum - Ambrose Bierce
>
>









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