[Test-Equipment] OLD lab instrumentation

[Stewart Bryant]

>>Having two standard cells is a very risky undertaking.  What if they 
>>don't give you identical readings (+/- 1 count) on your high-resolution 
>>DVM? <g>

You make independent measurements of the cells in turn
and calculate mean and standard deviation to determine a
more precise answer and an estimate of its error. You are
however stuck with any systematic errors.

Stewart G3YSX