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.
The operating voltage of this circuit is 18 V, and the source current is 3.5 A. The circuit is...
The original application of this 1967 Ferranti circuit can be changed so that it functions as a pass...
The circuit presented was obtained in the National Semiconductor's Linear Applications Handbook of...