Vintage Phono Service Manual - DECCA model DP-11 2-tube amplifier phonograph record player. Manufactured by Steelman Radio Corp., of Bronx, NY. Dated 1947. 2 pages. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. This manual would make a sensational accompaniment to your retro phono equipment.