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 5835-01-426-4826
NSN 5905-00-276-8597
NSN 5950-01-431-8103
NSN 4140-01-356-5614
NSN 5990-00-994-0555
NSN 5895-00-111-4599
NSN 5990-00-795-3796
NSN 6240-00-334-6766
NSN 6650-01-467-8818
NSN 5920-01-626-5520
NSN 5915-00-148-6958
NSN 5920-01-241-3227