The circuit shown is from a 1994 National Semiconductor documentation and can be implemented with more modern operational amplifiers. The power supply must be symmetrical.
This MW bedside radio was found in an English documentation from 1989. It is based on a dedicated...
This circuit is from 1993 documentation. The table shows the component values for voltage...
This low current solenoid driver was found in an ancient American documentation. The solenoid must be...