{ "item_title" : "Practical Directions For Winding Magnets For Dynamos (1892)", "item_author" : [" Carl Hering "], "item_description" : "Practical Directions For Winding Magnets For Dynamos (1892) is a technical guidebook written by Carl Hering. The book provides detailed instructions on how to wind magnets for dynamos, which were used to generate electricity in the late 19th century. The author explains the different types of magnets that can be used, as well as the various methods for winding them. The book also covers topics such as the calculation of wire gauge and the construction of commutators. With its clear and concise language, Practical Directions For Winding Magnets For Dynamos is a valuable resource for anyone interested in the history of electrical engineering or the practical aspects of magnet winding.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.", "item_img_path" : "https://covers4.booksamillion.com/covers/bam/1/16/483/718/1164837184_b.jpg", "price_data" : { "retail_price" : "20.95", "online_price" : "20.95", "our_price" : "20.95", "club_price" : "20.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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