Vintage Radio Service Manual - AIR CHIEF model 4-A-26 (Code No. 307-6-9030-A) 5-tube Superheterodyne AM radio receiver. Manufactured by Firestone Tire & Rubber Company, of Akron, OH. Dated 1948. 4 page.  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.

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