This simple Morse Code oscillator was found in a 1980s American documentation. The power supply should be powered with 5V and the integrated can be the 7400.
Found in a 1965 Electronic Design, this circuit produces a signal with the waveform shown in the...
This is a circuit that should not be used for readers interested in a fair game. The circuit...
This circuit receives the signals from the previous circuit (CB19055E) by activating an electric lock...