Vintage Radio Service Manual - MINERVA model 702H & 702H-1 6-tube Superheterodyne AM radio receiver. Manufactured by Minerva Corp. of America, of New York, 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 manual would make a sensational accompaniment to your retro audio equipment.