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 5998-00-161-5161
NSN 5985-01-351-6989
NSN 6610-00-614-7943
NSN 6110-01-016-8827
NSN 5975-01-429-8205
NSN 5915-00-016-4293
NSN 6130-00-155-9918
NSN 6220-00-802-6363
NSN 6610-00-202-5481
NSN 6145-01-424-0354
NSN 5920-01-196-4614
NSN 6620-01-369-4627