Question 18.2: When we need to vary the amplitude of an out-of-phase signal...

Electronic Principles

When we need to vary the amplitude of an out-of-phase signal, we can use a circuit like the one in Fig. 18-10. If $R_1 = 1.2$ kΩ and $R_2 = 91$ kΩ, what are the values of the maximum and minimum voltage gain?

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