Phono Pickups and Record Changers, Lesson RRT-7, De Forest's Training, Inc., c. 1950

As an example of the actions which take place in modern record changers, the motions of various parts making up the changer mechanism in the Admiral Model RC150, are described in detail in the following paragraphs. This model employs the slide type change mechanism, and a simplified drawing showing only the main components of this unit, is fiven in Figure 12.