Plot IN, CTRL and OUT. The behavioural source is deliberately transparent: Av = 0.2 + 9.8*VCTRL, so control voltages 0, 0.25 and 0.75 correspond to gains about 0.2, 2.65 and 7.55 V/V. This project isolates control-law thinking before returning to transistor nonlinearity, headroom and noise.
