> A serviceable substitution for the resistor is a common
> headlamp with test leads soldered to it.
I'll second that, with the added observation that a "burned out" bulb will
do nicely. Almost always one filament burns out first, leaving the other
available for testing. I keep a pile of H4 bulbs for just such purposes.
But of course a headlight bulb will only pass a few amps. If you're testing
a starter, it isn't going to work.
Problem with using a 1 ohm resistor is that it will burn up quickly if you
have a short, unless it's a really big (expensive) resistor. 12 amps times
12 volts is 144 watts. I find it easier and less expensive to just consider
test leads as consumables ... if the smoke comes out, buy a new one.
They're only about $1/ea @ Radio Shack.
http://tinyurl.com/4k5bp3
Also very handy to carry on trips, for "roadside tech sessions" and as
temporary workarounds for switches & wires that don't want to do their job.
Randall
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