| 摘要 |
A cartridge (45) is fixedly secured to a rotary plate (34) and a plastic plate by nuts and bolts (41), (41) at a head shell (6) of the end of a tone arm. The rotary plate (34) is rotatably mounted around a rotary mounting shaft (32) disposed at the rear of a stylus (30). A guide piece is provided at the end of the plastic plate to introduce the stylus of the cartridge (45). There is formed a hole through which the semi-circular hole of a song selection plate (1) additionally prepared and capable of being engaged with the spindle at the center of a turntable is superimposed with the central hole (29) of a spindle push plate. A dimorphic tape (20) is attached on each of the front and the rear sides of the plate (1) to extend from the center of the hole rectilinearly toward the radial line of a record disk. A stopper made of a small piece of the dimorphic tape for indicating the central point of the lead-in of each of the songs on the record disk is adhered onto the tape (20). The guide piece is brought into contact with the stopper to introduce the stylus (30) along the sound groove of the desired lead-in on the record disk. |
