Based on NXP 74HC logic, this circuit can be adapted for various uses. The circuit can also be used with 12V power, and the circuit replaced with a common 4046 PLL.
This circuit is from a 1982 publication. It is a sequential effect of accelerated LEDs. The...
This circuit was obtained from an Electronic Design from 1964. The components used are from the...
This circuit reinforces the treble, working as a booster for instruments or home theater. The...