/diy/ - Do It Yourself

>>1545120
This is what I'm getting. Only difference is I'm using power FETs, which is what you'd want to use in a power amp anyway. With the gates tied together and no biasing scheme in place, both of the transistors are "on" and the minor variation in voltage from the op amp provides enough to move the expected current through a theoretical 8 ohm load, but the transistors themselves are basically shorting the power supply rails. BJTs with the bases tied together presents the opposite problem: there's a "dead zone" of two Vbe drops around the 0V mark where neither of the two transistors are conducting any current, resulting in crossover distortion.