Vintage Phono Service Manual - STEELMAN model 350 3-tube amplifier phonograph player. Manufactured by Steelman Radio Corp., of Bronx, NY. Dated 1947. 4 pages.  Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. This phono manual would make a sensational accompaniment to your retro audio equipment.