[sdiy] Tape head collage (degausing)

[Ken Stone]

At one place I worked, they had a steel machine bed that had become
magnetized, and was causing all sorts of problems, so they wound a large
coil into which they could insert it. It was a little unweildy, so they had
several guys hold the machine bed while they powered up the coil.

Unfortunately, not enought thought had gone into the process, because the
result was not a demagnetised machine bed, but rather a short range rail gun....

Unfortunately (fortunately?) I joined the company after the event, so missed
out on actually seeing the action!

Ken

>Back in the days when Sun used to package the Phillips 25"
>monitors with the 3/160 and the like, they always shipped a
>CRT degaussing coil with them.  These monitors didn't have
>built-in degaussing coils, so they had to be manually degaussed
>about once a month.  As a junior programmer and sysadmin at
>Gould in Florida, it was my responsibility to perform this duty.
>You picked up this big plastic ring, about 18" in diameter, full
>of coils of wire, and with the cord and an in-line switch hanging
>out of one side.  The coils rattled inside the casing, and you could
>feel the whole assembly vibrate when you turned it on.
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
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