In fact, this circuit from the 60's applies to photographic printers of the time, timing the lighting of a 20 W lamp. The components are from the period.
We find this circuit in a 2005 Linear Technology manual. The circuit applies to small DC motors...
This circuit, which can also be adapted to function as a microcontroller shield, is from 2003...
Using a CA3130, operational amplifier with FET, we found this circuit in a 1977 publication. The...