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Looking to make a Magnetometer (ie, Gauss Meter) Answered

I'm looking for instructions to make a magnetmeter so I can measure my speakers. I have a few hard drives in my HT setup, and I want to make sure they will be safe with new placement, especially with the center channel being right underneath them. I found the following:

http://www.coolmagnetman.com/magmeter.htm

But it's kind of expensive to build: $70US+

Is there a cheaper solution?

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You could build that for much cheaper simply by NOT shopping at radio shack, for instance that multimeter, get the equivalent at Harbor freight, regularly on sale for $2.99 Check mouser for the sensor