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.
This circuit was obtained from Linear Technology's own component manual of the 1990s. The circuit...
This circuit generates two signals in phase opposition. The frequency is determined by R1 and C1...
This circuit may be used in IF steps of dual-conversion receivers, i.e., a type of receiver that uses...