We found this circuit in the January 1978 issue of Radio Electronics magazine. The integrated circuit is from that time and is powered by a 9 V battery. The signal must be applied to an amplifier.
This circuit converts a signal from any waveform into a rectangular or square signal of the same...
This circuit automatically inverts the test leads connection according to the polarity of the...
This amplifier, which can supply 3 or 5 W of power, according to the values of some components given in...