5805-25-118-9749

Machine Ringing Generator

5805251189749 251189749 11QD20-17

An electrically operated motor-generator which is a primary source of telephone ringing current, the output of which is used in telephone central offices and switchboards to operate telephone ringers and switchboard signals. It may also generate distinctive tone currents and may include an interrupter for coding the ringing and tone currents. See also GENERATOR, RINGING, STATIC. View more Machine Ringing Generator