This circuit was found in a 1965 General Electric manual. What it does is give a warning if you leave the vehicle with the headlights on or lights inside.
This High Side Current Sensor was found in a 2005 Linear Technology manual. The current sensing...
The AT21CS11 memory device offers an extended voltage range to accommodate lithium-ion battery...
Pressing and releasing S, the capacitor C1 charges and discharge slowly through the oscillator...