One of my methods of finding precision resistors and parts is looking at
old test equipment at hamfest.
An Fluke differential voltmeter, usually has a Kelvin-Varley precision
divider assembly in it that is made out of precision resistors. If the
instrument is inop, its usually very cheap to acquire and a great
salvage candidate. Why your at it, salvage the reference diodes and
note there is usually some markings near them that denoted the current
that was applied to the diodes, and sometimes the reference voltage.
Brian - KD4FM
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