{ "item_title" : "Small Dynamos and How to Make Them - Practical Instruction on Building a Variety of Machines Including Electric Motors", "item_author" : [" Various "], "item_description" : "This practical engineering handbook is in its complete and unabridged original form, extensively illustrated and full of instruction that is as useful and practical today as it was when originally published. Contents include - How A Dynamo Works, General Considerations - Simple Cycle-Lighting Dynamo - Hand-Driven 20-Watt Dynamo - Two Minature Dynamos - Direct-Coupled Dynamo And Water Motor - Three Small Electric Motors - 6-Volt Traction Motor - 60-Watt Simplex Dynamo Or Motor - Winding Data - Faults And Remedies - Various Dynamos And Motors. Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/1/44/469/940/1444699407_b.jpg", "price_data" : { "retail_price" : "30.99", "online_price" : "30.99", "our_price" : "30.99", "club_price" : "30.99", "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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