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.
We find this circuit in American documentation from the 1980s. It consists of a frequency folder...
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...
One pulse in the output is produce at each 5 pulses applied to the input. The circuit uses CMOS...