This circuit is from the Motorola Linear Databook of 1990 and can be implemented with other operational amplifiers. The power supply must be symmetrical.
This windshield wiper timer was obtained in an 80's Hands On. The transistor can be the BC548 and...
This circuit can source 3 to 12 V with currents up to 500 mA depending only on the transformer....
Panasonic AN44183A Microstepping Motor Driver is a two channel H-bridge driver with a bipolar...