A telephone circuit consisting primarily of telephone relays and associated telephone equipment designed for use in connection with a straight-forward trunk circuit to provide straight-forward signaling facilities on a two wire basis where telephone carrier equipment is not used.
Classification: Articles designed for connection to telegraphic or telephonic apparatus or instruments or to telegraphic or telephonic networks
NSN 5985-01-057-1876
NSN 6150-01-259-2627
NSN 4140-01-166-0028
NSN 6145-01-442-6935
NSN 5935-01-555-8560
NSN 5925-01-480-6525
NSN 5996-01-391-2733
NSN 6105-01-464-4251
NSN 5905-00-149-9248
NSN 5975-01-064-5483
NSN 6650-01-399-8552
NSN 5835-01-384-3206