| Details for Speakers Step-by-Step Plans
Free Speakers Step-by-Step plans - It was back in 1924 that a couple of researchers from General Electric, Chester Rice and Edward Kellogg, patented what remains the basic design for virtually all the world's loudspeakers. In the 84 years since, engineers and enthusiasts have invested a lot of thought and energy in the refinement of Rice and Kellogg's concept, creating a valuable knowledge base for the do-it-yourself crowd. Read more: How to Build Your Own Speakers: Step-by-Step DIY Tech - Popular Mechanics
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