We found this circuit in the 1990 Motorola Linear Databook. The circuit must use symmetric source and has 10times the voltage gain.
When the switch S1 is pressed for a moment, the motor receives the voltage of B1 more, adding to...
This amplifying step was found in an old American publication. The transistor is made of germanium and...
This switched, switched or PWM amplifier was obtained in the 1972 RCA linear integrated circuit...