Date : Mon, 13 Apr 2009 17:03:27 +0100
From : afra@... (Phill Harvey-Smith)
Subject: Easter Disaster
Jules Richardson wrote:
> It seems unlikely that hooking up a meter would have killed it, unless you
> accidentally shorted something out (and even then ICs can be pretty forgiving
> at times).
Dammit, broken list config strikes again!
All IIR my Physics O level correctly....
If he tried connecting a multimeter across the psu on a current range
that will have shorted it, you should always measure current inline with
the thing you are measuring, as ameters are very low resistance. Better
still measure the voltage drop through a known low resistance, and use
ohm's law to calculate the current.
Voltage you measure accros, as voltmeters are high resistance.
Cheers.
Phill.
--
Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric !
"You can twist perceptions, but reality won't budge" -- Rush.