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 5999-01-629-9488
NSN 6150-01-221-5394
NSN 6130-01-197-2920
NSN 2925-01-354-1752
NSN 6685-01-469-3025
NSN 5975-01-598-8896
NSN 6650-00-738-5418
NSN 5910-00-824-1419
NSN 4140-01-509-2490
NSN 5910-01-106-3499
NSN 6240-00-156-1607
NSN 6650-00-195-7519