This circuit is from a Radio Electronics magazine from August 1974. It used one of the first photomultiplier tubes that was to be powered by high voltage. The power came from the mains.
This is the simplest setting for lighting an LED. The circuit is from old English documentation that got...
This circuit is from the 1983 Intersil Databook. The circuit has an A / D converter for display of 4 and...
The MC33064 can also be used on this circuit of Motorola's 1993 Linear Interface ICs. The circuit...