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 5990-00-932-3070
NSN 5990-01-546-1649
NSN 5905-01-459-4580
NSN 7035-00-251-8201
NSN 5905-01-265-2435
NSN 7035-00-631-3782
NSN 6685-01-382-2487
NSN 5925-00-930-5559
NSN 5835-01-497-5029
NSN 6110-01-326-4691
NSN 5835-01-478-9428
NSN 5930-01-534-4384