Plug-in hot wire and thermocouple unit type 22C No.24596
- Object Number:
- 1994-458 Pt1
- type:
- thermocouple unit
Two plug-in hot wire and thermocouple units and one base with socket, made in the USA by Western Electric, and a moving coil milliammeter calibrated for use with the thermocouple units to measure high frequency alternating currents, made by the Weston Electrical Instrument Corp., circa 1925