I'm a EE student who recently purchased the classic Art of Electronics (new 3e). I was reading the first few chapters when I was referred to appendix J in the book depicting a SPICE tutorial but also with a circuit containing only resistors and capacitors (no inductors!) claiming to have a voltage transfer function greater than unity.
Could someone kindly explain to me how this circuit operates such that V_out is greater than V_in? If it is a common circuit, what name does it have? The peak, according to the textbook, is at 1.096kHz with a voltage gain of 1.142. All the simulators I have tried agree with this result, and at least according to the textbook an actual circuit probed with an oscilloscope had the same behavior.