MRC:
Characteristics or qualities of an item,not covered in any other requirement,which are considered essential information for one or more functions excluding nsn assignment.SUPP
Supplementary Features:
Lock-in amplifier system; c/o a lock-in amplifier, high z/low z preamplp/n 165, current input preamplifier 164, low noise, medium impedance preamplifier p/n 166; low noise high impedance preamplifier p/n 167; differential amplifier p/n 168; cable assembly p/n 391v1& programming interface p/n ieee-488
