North Atlantic model 213C Phase Angle Voltmeter.

North Atlantic model 225 Digital Phase Angle Voltmeter. 225-S-2762

North Atlantic 2251 Multifunction Voltmeter Combines a Total Voltmeter, a Phase Angle Voltmeter, and a Waveform Signal Analyzer in a Single Microprocessor-Based Instrument. Similar to model 2250.

North Atlantic model 512 AC Ratio Transformer. Bargain Basement terms apply - see full description.

North Atlantic 5410C-89-1 Three Synchro/Resolver to Digital Channels & Three Digital to Synchro/Resolver Channels, VXIbus card

North Atlantic model 545a Angle Position Indicator. Model S1484A NSN 6625-01-065-3432