YOU ARE BIDDING ON A MAY, 1958 ELECTRONIC SCHEMATIC FOR PHONOLA AC OPERATED AUDIO AMPLIFIER WITH 4 SPEED AUTOMATIC RECORD CHANGER MODELS: 1057, 1057W, PUBLISHED BY HOWARD W. SAMS & CO., INC., INDIANAPOLIS, IN. THIS IS FOLDER 10 OF SAM'S PHOTOFACT SET 399!  

FOR SERVICE INFORMATION ON RECORD CHANGER  -  SEE SIMILAR V-M MODEL: 1200A - PHOTOFACT SET #353 FOLDER 16. 

EXCELLENT CONDITION; NORMAL SHELF WEAR!

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