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 6685-01-122-4074
NSN 6105-01-605-0139
NSN 5895-01-157-9330
NSN 5895-01-033-2611
NSN 6145-01-134-7603
NSN 4140-00-027-5150
NSN 6150-01-432-1812
NSN 5895-00-680-9784
NSN 5965-01-314-3253
NSN 6150-00-062-4602
NSN 5985-01-259-4314
NSN 5930-01-143-2579