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  1. A Hartley oscillator uses FET with gm of 2 ms and rd = 2 KΩ. The total coil inductance is 10 μH with turns ratio of input to output side of 1 : 10. It is tuned with a 50 pf capacitor. Find frequency of oscillations, amplifier gain margin in dB.

    2. A.
    7.11 MHz, 13.97 dB
    B.
    7.3 MHz, 14.1 dB
    C.
    6.93 MHz, 12.9 dB
    D.
    7.4 MHz, 13 dB

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    Answer : Option A

    Explanation :

    = 7.11 MHz

    μ = gm x rd

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