Somewhere on teh intarweb "Phil Weldon" typed:
'~misfit~' wrote, in part:
I could probably do one card using caps I have lying around,
salvaged from other components. However, they're all an unknown
quantity.
_____

Write down the identification letters and numerals on a capacitor. Enter
this as a search string in Google. You will likely get some
hits that will identify the capacitor type, maximum working voltage,
and capacitance.
Only the electrolytic high capacitance (200 micro-farad or more)
units in a switching voltage converter/regulator are likely to have
gone bad. The proper replacements must be low ESR (Equivalent Series
Resistance) parts. If the ESR is too high for the purpose an
electrolytic capacitor will overheat, the electrolyte will expand,
and the top will pop (or at the least the internal structure will
rupture and the the capacitor will open or short.)

Thanks Phil. I've done a few capacitor replacements on motherboards and
always get Low ESR parts. I've always thought that there was really only
three other things that I needed to know to match them up (besides size)
being capacitance, voltage and temp rating.

When I said "unknown quantity" above I meant that I don't know if they're
still within spec as they're salvaged components taken from used, usually
non-working circuits. I mean, I know that, if they're Rubycon, Nichicon,
Sanyo or Teapo that they're likely to be fine but other than that I have no
way of testing them

Cheers,
--
Shaun.

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