- Vote on answer
- posted
12 years ago
Short Finder
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- posted
12 years ago
The point is that you want no power on the circuit while troubleshooting, and there are already safe tools that were developed for tracing out unpowered electrical systems.
-- You can't have a sense of humor, if you have no sense.
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12 years ago
I used one of the tektronix HE scope probes. I thought it was cool, but it belonged to the govt. I always wanted one.
Greg
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12 years ago
Why are you cluttering up the NG with this PGP crud? Are you worried that you're too easy to imitate? ;)
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
- Vote on answer
- posted
12 years ago
I never saw it until you posted the "crud" as plaintext - perhaps you should get a better news client? :)
Technologies for privacy, security, authentication and encryption are good things that should be encouraged IMO.
Re the short finder, I used to do it by injecting an amp into the short and following the voltage drops. Now I usually use a precision ohmeter instead, saves a few steps.
-- John Devereux
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- posted
12 years ago
Sounds like this:
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Same concept, applied to a slightly different purpose: reporting the resistance of "lead" pencil markings and tap water instead PCB circuits. ... Fun, too... although it can be tricky to find a 4H-6H pencil
Enjoy... or find a kid to play with it after you've built it.
Frank McKenney
--
The prohibition of dodgeball represents the overshooting of yet
another successful campaign against violence, the century-long
movement to prevent the abuse and neglect of children. It reminds
us of how a civilizing offensive can leave a culture with a legacy
of puzzling customs, peccadilloes, and taboos. The code of
etiquette bequeathed by this and other Rights Revolutions is
pervasive enough to have acquired a name. We call it political
correctness.
-- Steven Pinker / The Better Angels of Our Nature
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- posted
12 years ago
And the wire in your hand that you've just disconnected would go hot ;-)
--
"For a successful technology, reality must take precedence
over public relations, for nature cannot be fooled."
(Richard Feynman)
- Vote on answer
- posted
12 years ago
To
LED
Which model probe did you use?
Mine is definitely AC. Has no response to DC.
HP 547A Current Tracer Specifications Input Sensitivity: 1 mA to 1 A. Frequency response: light indicates single-step current transi- tions; single pulses > 50 ns in width; pulse trains to 10 MHz (typical- ly 20 MHz for current pulses >10 mA). Risetime: light indicates current transitions with risetime
- Vote on answer
- posted
12 years ago
not how they avoid the issue of the output stage, by redrawing it with the transistors swapped.
-- ?? 100% natural --- Posted via news://freenews.netfront.net/ - Complaints to news@netfront.net
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- posted
12 years ago
To
LED
How the hell do I know? It was almost 40 years ago. I haven't seen them in a
*LONG* time. The fact that they were HP tells you something.- Vote on answer
- posted
12 years ago
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To
LED
shorts,
I give up. What does the fact that they're HP tell me? More than the actual spec sheet quoted below? And I've seen 'em and actually measured one TODAY.
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- posted
12 years ago
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application. To
the LED
shorts,
That it wasn't yesterday.
That's *A* current probe.
How dumb can you be? DimBulb dumb?
- Vote on answer
- posted
12 years ago
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application. To
the LED
shorts,
aYep, but you can't seem to come up with another one. You know, the one YOU used.
Run out of logic? Try disparagement. How's that workin' for you?
- Vote on answer
- posted
12 years ago
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application. To
athe LED
shorts,
practice
in a
Why don't you try reading, dumbass?
You *are* a dumbass.