This electronic Morse Key for telegraph message transmission was found in an American 1980s amateur radio documentation. The circuit uses TTL technology and must be powered by a 5V voltage.
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...