This circuit is from a Radio Electronics from August 1992. The transistor used allows the control of motors up to about 5 A. It must be equipped with a heat sink.
This circuit from a National Semiconductor manual from the 1980s shows how to use the LM388, a...
This is a circuit with a new (at the time) component released by Raytheon in 1965. The circuit uses a...
Suggested by General Electric in a 1970 documentation, this circuit makes use of some components of...