23 Mar
2004
23 Mar
'04
11:12 a.m.
>>>> "jpero" == jpero
<jpero(a)sympatico.ca> writes:
> The brown gunk looks like flux (rosin) that
wasn't cleaned off.
> The solder joints have more solder on them than they should, but
> not so much that you'd get solder bridges as far as I can see.
> Excess flux can cause corrosion and leakage current, but I don't
> see corrosion here and some leakage is not all that likely to be
> an issue for a power circuit such as this.
jpero> I'm curious what a leakage and corrsion looks like with flux
jpero> left on the circuit board?
Corrosion would look green typically.
Leakage: I had a circuit that was flaky until I washed it better.
That was water soluble flux, probably more conductive than classic
rosin flux.
paul