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 5920-00-185-6664
NSN 4140-01-656-4546
NSN 5960-01-338-3412
NSN 5935-01-605-2726
NSN 5960-01-632-6576
NSN 5985-01-281-6990
NSN 5910-01-490-2061
NSN 6105-01-520-6202
NSN 5920-01-231-3615
NSN 6645-00-846-9206
NSN 6105-01-188-7292
NSN 5965-01-466-1154