This circuit was obtained from an American technical manual from the 80's. The integrated circuit is an operational of the time that can be replaced by a modern equivalent.
The transistors of this circuit may be general purpose and the power supply comes from the TTL...
January 2017 - Through Mouser Electronics Texas Instruments is launching its new zero-drift...
This four-phase stepper motor control uses a ST6982H IC. The maximum output current avaiable is...