The problem with the scraping approach is that, the scraping might not
reach the pin in it's entirety (the circumference, I mean). wherever
the scraping does not reach, the solder does not like to stick in any
manner. That's the reason, why I would like to avoid the scrape
approach.

Thanks,
Manu

On Sun, Mar 3, 2019 at 5:31 PM Jason White
<whitewaterssoftwareinfo@gmail.com> wrote:
>
> A dremel plus a small brass wire wheel might do the trick. I suspect that
> if you built a fixture to hold >25 crystals at a time in a vise that a
> suitably skilled and motivated person could clean up your crystals in ver=
y
> little time. (A strip of perfboard, a block of wood, and some bolts.
> Sandwich the crystals between the perfboard and the wood with the pins
> poking through the holes in the perfboard. Use threaded fasteners to hold
> it together. Then clamp the wood block in a vise and wire bush away. Rins=
e
> and repeat until finished)
>
> Alternatively,
>
> It is hard to say if the really nasty acid core fluxes would be suitable
> for electronic components. You'd probably have to clean them after.
>
> -Jason White
>
>
> On Sunday, March 3, 2019, Manu Abraham <abraham.manu@gmail.com> wrote:
>
> > Hi,
> >
> > I have this large bag of through-hole standard crystals, which have
> > their pins oxidized, since the bag was left open for a while and thus
> > solderability is a big issue.
> >
> > The crystals are good, just that time has to be spent scraping the
> > oxide of the pins which is a waste of time.
> >
> > Is there a better way to remove the oxide layer other than scraping,
> > probably by a chemical process or so ?
> >
> > Any thoughts ?
> >
> > Thanks,
> > Manu
> > --
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>
>
> --
> Jason White
> --
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> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
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