Found in American documentation from the 90s, this circuit is ideal for wearables and can be powered by voltages that depend on the number of LEDs.
The integrated circuit of this project is not very common. The circuit is from 2003. This circuit is...
A rectangular signal can be generated with the figure setting. The values given in the circle...
This audio mixer or mixer was found in a translation of an American publication from the 1980s. The...