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 tests the offset current of an operational with the aid of an oscilloscope. The...
This circuit has a thermal chamber that acts as a stabilizer, compensating for the ambient...
The components of this circuit are exchanged for modern equivalent such as 470 K for the pot and...