Vintage RAULAND model 1826 (model 1801A remote control unit, with model 1805A 4-channel 20 watt audio amplifier. Original old Sams Photofact manual includes schematic, layout, voltage & resistance test chart, repair parts list and description. 8 pages. Dated 1954. Rauland-Borg Corp., of Chicago, IL. This manual would make a sensational accompaniment to your classic audio equipment.