This 12V stepper motor controller was found in the August 1996 Electronics Now magazine. The circuit has a pulse input and the MOSFETs can be of virtually any type.
This circuit with JFET and Unijunction was found in an ancient American documentation. The...
This metering bridge circuit uses one power supply only. The operational ones depend on the...
We found this configuration in the 1964 RCA transistors manual. As indicator loads in each stage,...