On Thu, 2009-04-16 at 09:25 +0100, Alan B. Pearce wrote:
> >In my junior year EE lab, I still remember one of the experiments,
> >it was a digital circuit using TTL chips. My lab partner (who had
> >pretty close to a 4.0 average) was all upset. He had done the
> >calculations on the current required by all the chips (100 mA total
> >or whatever). The power supply was 5V rated at 3A. He was concerned
> >because the supply would force 3A though the circuit, damaging the
> >chips.
> >
> >True story.
> 
> Shades of another true story, that I may have told here before.
> 
> Graduate fresh from university decides he needs to measure the source 
> impedance of the mains supply, so puts Avo 8 Multimeter on 'Ohms' range, and 
> plugs probes into mains socket. Proceeds to wonder why there is an almighty 
> bang inside his nice new meter, that no longer works, and is a write off.

When I was probably younger then 10 years old I used my brand new
digital multimeter to measure the amount of current a wall socket can
produce. Fortunately the range I used was fused and no fireworks
occurred, but it took me a while to understand why that idea didn't
work! :)

TTYL

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