Schematics for the project can be found here...
2NV73 schematic
2NV73 B182 schematic
2NV73 BA205 schematic
2NV73 BA211 schematic
2NV73 BA284a schematic
2NV73 BA284b schematic
2NV73 DI input schematic
Or you can also reference the original vintage schematic here:
schematic