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Oscillator Circuits
49 questions By Tony R. Kuphaldt
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Question 49 of 49
Calculate the operating frequency of the following oscillator circuit, if C1 = 0.027 μF, C2 = 0.027 μF, and L1 = 220 mH:
Reveal answerf = 2.920 kHz
Notes:Note to your students that the following formula (used to obtain the answer shown) is valid only if the tank circuit’s Q factor is high (at least 10 is the rule-of-thumb):
$$f = \frac{1}{2\pi \sqrt{LC}}$$
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