This circuit makes use of components from the time it was published. The TCA151 is not a common component today. The circuit generates 10 to 10 kHz signals.
This circuit can operate with 27 MHz transmitters, having been found in a Japanese publication from 1967....
This simple circuit converts RGB signals into composite video and can be used as a shield in...
This circuit is intended to drive bistable relays and can be used as a shield for...