A Colpitts oscillator, invented in 1918 by Canadian-American engineer Edwin H. Colpitts using vacuum tubes,[1] is one of a number of designs for LC oscillators, electronic oscillators that use a combination of inductors (L) and capacitors (C) to produce an oscillation at a certain frequency. The distinguishing feature of the Colpitts oscillator is that the feedback for the active device is taken from a voltage divider made of two capacitors in series across the inductor.[2][3][4][5]
^US 1624537, Colpitts, Edwin H., "Oscillation generator", published 1 February 1918, issued 12 April 1927
^Gottlieb, Irving Gottlieb (1997). Practical Oscillator Handbook. US: Elsevier. p. 151. ISBN 0750631023.
^Carr, Joe (2002). RF Components and Circuits. US: Newnes. p. 127. ISBN 0750648449.
^Basak, A. (1991). Analogue Electronic Circuits and Systems. UK: Cambridge University Press. p. 153. ISBN 0521360463.
^Rohde, Ulrich L.; Matthias Rudolph (2012). RF / Microwave Circuit Design for Wireless Applications, 2nd Ed. John Wiley & Sons. pp. 745–746. ISBN 978-1118431405.
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for his description in 1948 of an improved form of Colpittsoscillator known as the Clapp oscillator. "Obituaries". IEEE Spectrum. 2 (7): 152–153. 1965...
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