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 4140-00-313-2358
NSN 5945-00-911-8078
NSN 5910-00-194-4798
NSN 5905-01-264-8310
NSN 6610-00-908-8489
NSN 6220-01-476-8889
NSN 2925-01-534-5389
NSN 6145-01-065-0799
NSN 5895-00-203-2379
NSN 6685-01-199-5911
NSN 5895-00-935-0225
NSN 5965-00-289-6280