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[Shop-talk] Tachometers

Subject: [Shop-talk] Tachometers
From: tr3driver at ca.rr.com (Randall)
Date: Wed, 11 Jan 2012 18:17:16 -0800
Has anyone tried either the contact
http://goo.gl/BZ98H
 or non-contact tachometers from HF?
http://goo.gl/usd3Q

I'd like to map out the various spindle speeds for my 10" lathe, vertical
mill & drill press; plus I occasionally want to know how fast some other
shaft is turning.  For example, at the moment, I'm trying to repair an old
speedometer and it would be a lot easier to test if I could spin it with a
drill motor and know what it should be reading rather than having to install
it in the car and take a drive.

-- Randall 

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