A Look Inside #9 - Keithley 179A Bench Multimeter

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I take a look inside the Keithley 179A Bench Multimeter. This is a 4.5 digit / 20 000 count precision true RMS multimeter that was produced by Keithley, in Cleveland Ohio, in the 1970's and 1980's.

The manual can be found here.
http://projectlab.engphys.ubc.ca/wp-c...

Thanks to Retiredcaps for bringing it to my attention.
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