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#1
06-24-2012, 04:37 PM
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Operational HP 970a Voltmeter
Other than rebuilding the battery pack, and fabricating new battery connector springs to replace corroded/broken parts, very little was required to restore operation of this unique 1973 "pen style" DMM. Attached is a pix of the operating meter, charger, case, manual, long probe and light shield.
More about the 970A here: www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1973-11.pdf Next task will be an attempt to fabricate the unique "watchband" selector switch, which wraps around the body of the meter. It has a "pointer" which indicates the function (Kohms, Vac and Vdc) and a tab that engages the actual switch (on the left side of the meter). jr 
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#2
06-24-2012, 04:42 PM
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Wow, that's really cool! I didn't know such a thing was possibly back in 1973.
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#3
06-24-2012, 04:44 PM
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Must of been very expensive back then.
__________________
"It's a mad mad mad mad world" !! http://www.youtube.com/user/mwstaton64?feature=mhee
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#4
06-24-2012, 05:53 PM
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This article states "at a relatively modest $275."
http://www.decodesystems.com/hp970a-cq-oct73.html jr
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Linear Mode
