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 5985-00-256-5022
NSN 2925-00-233-5644
NSN 5925-00-840-7058
NSN 5990-01-324-7529
NSN 5985-01-018-0933
NSN 6610-01-086-5334
NSN 5999-01-492-6019
NSN 5996-01-438-0323
NSN 5855-01-177-3301
NSN 6645-00-833-2395
NSN 6610-01-167-8747
NSN 5945-00-510-5511