On X axis is battery voltage from 0 to 15V. On Y axis is gain. All circuits are from ngspicesjs examples
Common emitter:
Emitter follower:
2-transistor bootstrap amplifier:
Some weird 2-transistor french amplifier:
High-gain 2-stage common emitter:
Mosfet 10x amplifier:
Opamp piezo buffer:
Green ringer octaver pedal:
