The Model 1693 is part of a family of test accessories ideal for low voltage precision measurements.
Spade lugs of high conductivity gold plated ETP copper alloy 110, are attached to low resistance multi-stranded 12 gauge wire.
This design greatly minimizes the effect of Thermal Electric Voltage (Thermal EMF).
Therma1 EMF is generated at the junction of dissimilar metals at different temperatures and is a common source of error in low micro and nano volt measurements.