This circuit of the 70's uses transistors of the time. The circuit can amplify signals from 10 Hz to 100 kHz and modern equivalent components can be used. The circuit is from Ferranti.
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...