This circuit is from an October 1980 Radio Electronics magazine. The circuit indicates when the maximum voltage range set by the LM3914 exceeds its end.
This circuit indicates the logical level of a CMOS circuit, extracting the power from the circuit...
The circuit of the figure serves the same purpose as the previous one (CB5057E), but has a...
The oscillator in figure 1 can be used in alarm, call or warning systems, producing a sound of...