Found in a 90s Linear Technology documentation, this circuit is intended for powering cold cathode fluorescent lamps. The circuit has an input voltage from 4.5 to 20 V.
We found this circuit in the May 1972 issue of Radio Electronics magazine. Its purpose is to teach...
Two comparators are used to indicate the status of a 9 V battery. The circuit is from Electronics Now...
This circuit was obtained in a 1965 American magazine translation. The photocell can be the type...