North Atlantic Industries 77SD1 PC-12SDE-282 Synchro Resolver Simulation Board. Very good condition. Carefully removed from operational system. No manual, cables or other accessories. Purchaser responsible for compatibility, correct configuration and proper installation. As shown.
The 77DS1 is an ISA Synchro/Resolver Simulation Board that provides 8 D/S Converter Channels that can be used in single-speed or two-speed modes. It provides wrap-around self-test, optional Programmable Reference Supply, and is available for Military or Commercial applications.





