Vintage CORONADO model PH13-3827  AC operated 1-tube phono amplifier with manual record changer player. Original old Sams Photofact manual includes schematic, parts layout, voltage/resistance chart, repair parts list and description. 2 pages. Dated 7-1965. Manufactured by Coronado Radio, of Minneapolis, MN. This manual would make a sensational accompaniment to your retro phonograph equipment.