This 1988 circuit makes a back-and-forth of LEDs whose speed is controlled by P1. All components used are common and the circuit can be powered by voltages from 6 to 9 V.
This circuit was found in a 1970s documentation. The integrated circuit used is uncommon today....
Employing the XR2206 IC, this circuit was found in the May 1977 issue of Radio Electronics...
September 2016 - Mouser Electronics is already providing the QorIQ LS1012A from NXP, a processor...