PPRuNe Forums - View Single Post - Impedance switch on helmet.

22nd May 2011, 09:03

#3 (permalink)

9Aplus

Join Date: Jan 2009

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Age: 59

Posts: 822

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Usefull source here, page 16, nice article "Audio Transformers by Bill Whitlock"

http://www.jensen-transformers.com/a...%20Chapter.pdf

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