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 6145-01-326-5622
NSN 5930-01-545-7816
NSN 5930-00-188-9880
NSN 5990-01-517-1909
NSN 5999-01-364-5335
NSN 5915-01-619-2433
NSN 6610-00-433-5227
NSN 4140-01-159-5135
NSN 4140-01-452-9428
NSN 5998-01-145-5199
NSN 6645-01-642-3637
NSN 5975-01-606-4618