This circuit detects when there was a power cut, triggering the indicator circuit around it. The circuit is powered by the voltage of a source connected to the grid.
This transmitter, indicated for espionage applications, is permanently powered by the power grid....
The maximum frequency of the oscillator shown in figure 10 is on the order of 5 MHz, depending on the...
This circuit was found in the SGS manual of linear integrated circuits of 1982. The integrated circuit...