yep better start making another because most likely
the acid is mixed in with the solder on top of the
trace it will continue eating the trace and or pads
it is on i made this mistake once dispite my best
attemps to fix the problem with in a few months
i had to throw it out and do it again bye the way
it will also eat the legs and leeds of the parts
you put in the board in no time you will see green
salts around the pins good luck but sorry about the
board
--- crankorgan <
john@...> wrote:
> Hi,
> Plumbing is acid core and electronics is rosin
> core. Even if you
> flush the board the traces might still be eaten away
> over time. My
> friend work at Heathkit. Even thought the kits came
> with solder and a
> warning people would manage to use acid core. After
> a month or so the
> radio-TV etc would start doing crazy things.
>
> John
>
>
>
>
> --- In Homebrew_PCBs@yahoogroups.com, "ghidera2000"
> <ghidera2000@y...> wrote:
> > Just made another double sided board with 10 mil
> traces. Quite a
> few
> > traces run between dip pins.
> >
> > Anyway, I solder it all up, stick my DC ammeter on
> and power it up.
> > 150mA on a board that should take 6mA. I went
> looking for shorts
> > with my trusty razor knife - couldn't see any but
> I did some
> > scraping in really close spots anyway.
> >
> > Still 50mA... Spend two hours desoldering,
> inspecting and re-
> > soldering, check and still 30mA. What the heck is
> going on I say
> to
> > myself!
> >
> > After another hour of farting around, I came to
> the conclusion that
> > my flux is conductive! Using a rosin flux remover
> pen and some
> paper
> > (to soak the sludge up) I cleaned out the tightest
> spots and down
> go
> > the mAs to 10. Ran out of my spray on cleaner and
> its sunday of
> > course, no electronics suppliers open around here.
> >
> > Looking at my flux container, I relized I'd
> grabbed my plumbing
> flux
> > instead - Oatay #5. I never realized that plumbing
> flux was so much
> > different from electronics flux. Lesson learned!
>
>
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