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The required current gain in a transistor phase-shift oscillator is

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For equal RC sections, a phase-shift oscillator requires a minimum amplifier gain of approximately \[ 29. \] This is one of the most frequently used results in oscillator theory.

Updated On: Jun 25, 2026

\[ h_{fe}>29+23\frac{R_C}{R}+4\frac{R}{R_C} \]
\[ h_{fe}<29+23\frac{R_C}{R}+4\frac{R}{R_C} \]
\[ h_{fe}>23+29\frac{R}{R_C}+4\frac{R_C}{R} \]
\[ h_{fe}<23+29\frac{R}{R_C}+4\frac{R_C}{R} \]

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The Correct Option is A

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The required current gain in a transistor phase-shift oscillator is

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The Correct Option is A

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