ard at p850ug1.demon.co.uk
Fri Feb 3 12:44:05 CST 2006
> Well, he was typing on the Apple IIe, and a neighbor decided to leave
> the complex.
> At the same instant that the roommate hit ENTER, the car managed to
> back into the power transformer. There was a loud explosion outside,
> and inside a smaller one was accompanied by (as he described it) "the
> floppy drive flying right by my head and into the wall"!
> The accompanying surge blew out every electronic device in the complex
> that was directly attached to an outlet. Ironically enough, the Apple
> IIe (sans unfortunate disk drive) survived. It had a Kensington
> System Saver installed...
> According to the roommate, the System Saver saved itself... The spike
> was shunted to the power supply, which shunted it to the motherboard,
> which shunted it to the disk drive. Having nowhere to shunt the
> spike, the disk drive saved the computer by commiting suicide.
> The last part I had no faith in, until uncovering his Apple IIe in a
> store-room a few years ago. There was the system saver, the IIe, and
> two disk drives... The first ("Drive 2") was perfectly functional, if
> dirty... The second ("Drive 1") didn't work. On disassembly, a large
> scorched hole winked out from a place on the analog board that once
> housed a major IC.
Could you please explain that in a way that makes electrical sense. A
surge does not run around until it finds nowhere to go and then blows up
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