An electronic device which receives, converts and transmits ringing and/or supervisory or other messages over a communication circuit in the form of audio frequency tones. May include integral interrupters, oscillators and hybrid and filter networks. Excludes generator, ringing, static and generator, ringing, machine.
Classification: Articles designed for connection to telegraphic or telephonic apparatus or instruments or to telegraphic or telephonic networks
NSN 6130-01-288-0660
NSN 6105-00-164-3890
NSN 5920-01-401-5315
NSN 2925-01-424-0235
NSN 5975-01-177-0438
NSN 5945-01-411-8563
NSN 5855-01-591-0466
NSN 5975-01-648-0787
NSN 7035-01-201-6329
NSN 6320-01-162-5977
NSN 6150-01-602-1622
NSN 6220-01-324-7046