Alan Dower Blumlein, (born June 29, 1903 in Hampstead, London, died June 7, 1942) was an electronics engineer who made a great many inventions in telecommunications, sound recording, stereo, television and radar. He received 128 patents. Front cover of Blumlein [http://www.doramusic.com/blumlein.htm biography] Wikipedia
Alan dower Blumlein, the inventor of stereo. This site contains actual patents and diagrams, as well as handwriting examples of the A.D Blumlein www.doramusic.com/blumlein.htm
Newman, the main architect of the circuit design of the Pilot Model, introduced some of the practices common at EMI and due to the brilliant electronic engineer Alan Blumlein. www.alanturing.net/turing_archive/pages/blumlein/
The definitive Wikipedia entry for Alan Blumlein. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Alan_Blumlein