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Forums
4hv.org :: Forums :: Chemistry
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chemical solution for cleaning component leads

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ragnar
Mon Oct 22 2007, 11:30AM
ragnar Registered Member #63 Joined: Thu Feb 09 2006, 06:18AM
Location:
Posts: 1425
Hi Steve,
suffering the corroded bits problem for a while, it IS actually surprisingly exhausting in time to scratch those leads clean... it's pretty demoralising too. tongue

Perhaps a related question if anyone here can answer; when attempting to solder to battery springs (are they beryllium copper??), is there a way to get through the plating without meticulously scraping it with a knife? What IS the plating?

(On a sidenote, I'm even more worried (ropable) about the threat/potential ban on "inefficient" LCD and plasma TVs in Australia... seriously, how do legislators DARE to suddenly make your product illegal to own overnight.. **sigh**)
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Avalanche
Mon Oct 22 2007, 05:53PM
Avalanche Registered Member #103 Joined: Thu Feb 09 2006, 08:16PM
Location: Derby, UK
Posts: 845
thanks for the replies, some interesting ones so far!

Yeah there's no chance I'm going to sit down and clean all these damn things manually, that was why I wondered if there was an easier way tongue

Most of these components are probably about 20 years old, and have been sitting unpackaged in a dusty damp shed ever since the tv repair guy who gave them to me stopped repairing tvs. No RoHS stuff here. They are mostly bipolar power transistors, including line output transistors. Unfortunately most of the leads are black with crud, I think they'll need more than flux...

It's not that big a deal anyway, it doesn't look like there's an easy answer so they'll probably just end up in the junk box/bin.
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Zum Beispiel
Mon Oct 22 2007, 06:49PM
Zum Beispiel Registered Member #514 Joined: Sun Feb 11 2007, 12:27AM
Location: Somewhere in Pirkanmaa, Finland
Posts: 295
Why do you need to clean them all at once? Why not just clean the leads as you use them?
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