This circuit generates various types of sounds and can be used as a toy. The circuit is from Radio Electronics from January 1983. The amplifier can be replaced with a more modern type.
This digital buffer was found in the November 1993 issue of Electronics Now. The power supply...
This circuit is from 70's documentation. The converter used is not a common component today. |...
This circuit was found in an old publication from the 1970s. Despite using germanium transistors, it can...