Re: Do A Google Search; It Could Save Your Life !!

Craig Yarbrough <hyarbr01@xxxxxxxxxx> wrote:
: I've popped those pulling the chassis out and accidentally brushing the
: solder side on the frame. Darn things sound like a .22 going off!
: Ideally you should never crowbar a capacitor, instead discharge them
: through a resistor. There's oodles of Googles on the subject.

I keep a 10 ohm 10W around for such occasions.

: Incidentally a prof once told us a story about a guy who killed himself
: with a voltmeter. The Ohms setting applies 9V (or so) across the test
: leads and measures the current flowing between them to determine
: resistance. Holding test leads in both hands you won't feel much
: because the resistance of your skin is in the mega-Ohms. However if you
: break the skin on both hands the resistance drops significantly and
: allows current to flow through your body. Apparently a few hundred
: milliamps is enough to stop a heart. This one poor bloke was determined
: to dis-prove that theory to his classmates, and well, failed the final
: exam.

I call BS on that one... where's my multimeter... I don't believe that
the resistance across the body is under 100 ohms.

On a really old-style analog multimeter the meter elements are far too
sensitive to take currents that high. Have you ever used a multimeter
that sparks when you click the leads together?

IIRC, digital multimeters apply a small current and measure the voltage
via a DAC, using different current levels for different ranges.

--
Mark Spaeth mspaeth@xxxxxxxxxxx
50 Vassar St., #38.265 mspaeth@xxxxxxx
Cambridge, MA 02139
(617) 452-2354 http://rgvac.978.org/~mspaeth

.

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