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 5905-01-172-7186
NSN 5835-01-442-6482
NSN 5930-00-826-9702
NSN 5930-01-334-0017
NSN 5965-01-462-9340
NSN 5985-00-834-3662
NSN 5835-01-049-5290
NSN 5920-01-641-4080
NSN 5999-01-471-1298
NSN 2925-01-258-8141
NSN 7035-01-240-0541
NSN 5996-01-542-9499