Vintage GENERAL ELECTRIC models RP2050A, RP2050B, RP2051A and RP2052B.  4-tube AC operated stereo phonograph amplifier with 4 speed automatic record changer. Original old Sams Photofact manual includes schematic, parts layout, voltage & resistance test chart, repair parts list and description..4 pages. Dated 6-1963. Manufactured by General Electric Company, of Decatur, IL. This manual would make a sensational accompaniment to your retro phono equipment.