In article ,
Dan wrote:

On 3/3/2011 9:05 PM, josephkk wrote:
On Sun, 30 Jan 2011 15:20:22 -0700, Jim Thompson
wrote:

On Sun, 30 Jan 2011 16:14:25 -0600, John Fields
wrote:

On Sun, 30 Jan 2011 13:12:22 -0700, Jim Thompson
wrote:

On Sun, 30 Jan 2011 12:06:40 -0800, "BobW"
wrote:


"John wrote in message
...

Brilliant! You need to patent that.

Bob

My father did that around the late 50's to demagnetize screw drivers.
I think every TV repairman knows that trick.



---
I inherited that from my grandfather.

---
JF

I'm not surprised.

You and I and Michael are probably the only ones lurking here who know
what a degaussing coil is (and how to make your own ;-)

...Jim Thompson

Don't feel so lonely. I made one over 40 years ago.

Many years ago I was working a T-39 magnetic compass problem. The
cure was to use a degaussing coil on the outside area near where it was
mounted.

If you want to seriously inconvenience a hiker degauss a compass then
give it to him as a present. Not that I would do such a thing, me being
innocent and all.

Dan, U.S. Air Force, retired

Most compasses are easily re-magnetized with a rare earth magnet.

I always used shaded-pole motors for degaussing - just cut off the hole
side and it's quite powerful.
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