This circuit was found in the November 1994 issue of Electronics Now magazine. The circuit is based on the 566 PLL and generates signals up to about 200 kHz.
This simple timer can be used in many applications such as egg timer. The LED glows up when S1 is...
We find this circuit in a 1980s documentation. The circuit is for SSB modulation and the...
This circuit was found in an old American documentation aimed at amateurs. The circuit generates...