This simple circuit is powered by the logic circuit itself. Components are still common, although they were obtained from somewhat old documentation.
This well-known siren configuration using complementary transistors is from a 1980s documentation. The...
This is a one-bit memory that can be used to store a simple bit of information, such as a remote...
This circuit using an Unijunction Transistor produces a 240 Hz saw tooth signal. The frequency...