We found this circuit in the October 1988 Radio Electronics magazine. The circuit is still current due to the components used, and changes can be made.
This circuit with the 555, was obtained in a 90s American documentation. The signal must be...
In the figure we have a simple and efficient way to obtain rectangular signals from an astounding 555...
This is the traditional Hartley Oscillator configuration for high frequencies. For 1 MHz wind 80...