This circuit has an accuracy of 1%. The components used must be precision as well. The input frequency range is 40 Hz to 10 kHz with the indicated components.
The idea of this circuit is to press the button in such a way that the flow of the LED in the...
This is the receiver for the previous circuit we found in the December 1992 Radio Electronics...
This circuit was obtained in a documentation from the National Bureau of Standards of 1968. The...