Antique Electronics and Vintage Solid State
MIT Measurement Lab resistance standards
I obtained these resistance standards from the MIT lab clean-out a number of years ago.
They are marked “MEAS LAB”, which I presume stands for “Measurement Laboratory”. This is the 2,000,000 Ohm standard.
…Homebrew 100K Ω Resistance Standard
I’m upgrading my lab standards. Up until now, I’ve just depended on an old and long out of calibration HP 3468A as my lab standard.
I’m constructing a series of resistance standards. Here’s the 100K Ω standard.
…HP 3456A Digital Voltmeter
My friend Andy Wallace gave me some test equipment back in the early 1990’s, ...
… and this HP 3456A was among them.
At power on, it would fail self-test #4 with an overload indication (“OL"), so I set it aside, fearing that it would be difficult to find and fix the fault. …
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