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6 of 12 articles

Clapp Oscillator

Modified Colpitts, improved frequency stability.

Darshan N
Updated: 19 March 2026
5 min read

Clapp Oscillator Quiz

Test your knowledge of the Clapp oscillator and how the added series capacitor improves frequency stability over Colpitts.

Question 1 of 3

Q1.A Clapp oscillator differs from a Colpitts oscillator by the addition of a capacitor C3 placed in series with the inductor L. If C3 << C1 and C3 << C2, the oscillation frequency is primarily determined by:

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Hartley Oscillator
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Crystal Oscillator