4 chan telephone circuit; 2 spiral 4 transmission line use; 200 hz to 12 khz carrier freq range; 1000 hz ring circuit; 400 to 800 mi oper dist; alt oper pwr rqmt ac 115v, 50 to 60 hz, 1 ph, 230v, 50 to 60 hz 1 ph, dc 12v; components list doc a tech man tm11-341 pg 142; sig telephone terminal set type tc-21-a and tc-21-b; genl purpose use
Two or more carrier telephone terminals with operating accessories for two way communication. It may include necessary wiring facilities.
Classification: Parts for apparatus for transmission or reception of voice, images or other data, including apparatus for communication in a wired or wireless network
NSN 5835-00-174-7763
NSN 5935-01-075-1572
NSN 6110-01-406-8517
NSN 5855-01-258-5161
NSN 5935-01-391-4980
NSN 5998-01-495-0882
NSN 2925-01-511-5359
NSN 6110-01-557-8439
NSN 5935-01-358-8784
NSN 6145-01-464-6228
NSN 5930-01-360-7479
NSN 5975-01-123-8380