Vintage Amplifier Service Manual - SILVERTONE model 7350 (Chassis No. 435.410) 5-tube 2-channel (mic - phono) audio amplifier with phonograph record player. Manufactured by Sears, Roebuck & Company, 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.