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 5915-01-412-8667
NSN 6150-00-245-2149
NSN 5975-01-407-5910
NSN 5996-01-612-9960
NSN 5855-00-087-7833
NSN 4140-01-152-1214
NSN 6610-00-159-1119
NSN 5855-00-237-4088
NSN 6620-00-816-9755
NSN 6130-01-408-7820
NSN 5990-01-453-3552
NSN 5930-01-145-2157