Erik Lindberg

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Questions related from Erik Lindberg

Who was the the first to investigate the concept of "negative resistor" ?

So far I have found: Author: Usui Journal Journal of the Institution of Electrical Engineers of Japan — 1931, Volume 51, pp. 393-403 Abstract: A mathematical paper in which formulaelig are...

11 November 2014 6,861 11 View

Who invented the Wien Bridge oscillator ?

So far I have traced it back to Mr. Hewlett in 1939

01 January 2013 3,929 30 View