Eaton P-7 Interference Test Set Programmer. This programmer was also manufactured under the names of Ailtech, Singer, and Stoddart. The P-7 system Programmer is a programmable controller developed for Ailtech, Eaton, Stoddart & Singer breakdown measurement receiving device/field strength measuring instruments NM-7 (A), NM-17/27 (A), NM-37/57 (A), NM-67. The programmer is capable of controlling any of these EMI/RFI measuring devices and accumulating data with appropriate equipment.
This Interference Test Set ( EMI ) Programmer came to us from a retiring electrical engineer who used this in his calibration and product development electronics lab.