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 5905-01-555-8077
NSN 5996-01-264-8463
NSN 5990-01-413-2405
NSN 6320-01-352-8084
NSN 5895-01-204-8433
NSN 6610-00-811-6072
NSN 6650-00-915-8545
NSN 6645-01-477-0419
NSN 7035-01-240-0541
NSN 6685-01-128-0174
NSN 5985-01-321-3178
NSN 5905-01-281-4325