This game aims to make you discover which is the combination of activated switches that make the LEDs light up. The circuit is powered by batteries or cells.
The circuit presented is based on a mechanical tuning fork. The circuit is suggested by National...
When the input of this circuit goes to high level, the LEDs start to flash alternately. The...
Found in a 90s 303 Circuits, this circuit has an output power of 100 mW. L1 consists of 890 turns...