Found in a Popular Elecronics from the 90s, this circuit appears in other versions in this section and on the website. The circuit draws one of 10 LEDs and has a sound effect produced during the draw.
This circuit was found in a European technical documentation from 1991. It is a circuit that must...
This circuit was obtained from a 2005 Linear Technology manual. It is based on company components...
This circuit, which has a power of a few tens of microwatts, is suggested by Maxim. The circuit has a...