Vintage Radio Service Manual - KNIGHT model 93-155  9-tube, 3-channel audio amplifier with phonograph record player. Manufactured by Allied Radio Corp., of Chicago, IL. Dated 1948. 4 pages. Original old Sams Photofact manual includes schematic, layout, voltage & resistance test chart, repair parts list and description. This manual would make a sensational accompaniment to your retro phono equipment.