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People > Photos > Gallery: Suzanne R. > Album: E. H. Armstrong's Lab Alpine NJ
Album: E. H. Armstrong's Lab Alpine NJ

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Date: 09/30/08 - Size: 8 items

From the Web Site: Radio's premier inventor, Edwin H. Armstrong was responsible for the Regenerative Circuit (1912), the Superheterodyne Circuit (1918), the Superregenerative Circuit (1922) and the complete FM System (1933). His inventions and developments form the backbone of Radio Communications as we know it.