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 6110-01-595-9027
NSN 5985-01-572-4282
NSN 6130-00-155-8028
NSN 4140-01-481-7019
NSN 5998-00-558-6389
NSN 6240-01-633-6350
NSN 5960-00-236-3980
NSN 6105-01-436-9230
NSN 5925-01-459-9005
NSN 5935-01-450-6605
NSN 5935-01-261-3110
NSN 6650-01-321-2905