Found in the documentation on PCs, this circuit excites LEDs whose current is determined by R3.
This voice scrambler circuit was obtained from an American 1990s documentation. Used operational...
August 2016 - The new Schottky diodes from Vishay's ESMP series for surface mounting can now be...
September 2017 - Texas Instruments PCM186x and PCM186x-Q1 Audio ADCs can be found at Mouser...