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 6220-01-180-8314
NSN 4140-01-263-9065
NSN 5996-00-533-8061
NSN 4140-01-145-6524
NSN 5985-01-272-0943
NSN 5910-00-929-2677
NSN 6105-01-634-0322
NSN 6150-01-013-9492
NSN 5935-00-617-6727
NSN 5910-01-411-7832
NSN 2925-01-189-4272
NSN 6220-01-099-8561