10x LED Chaser/Follower

The name/title says it all. Circuit is a typical LED chaser circuit comprised of 10 LEDs. Another design lifted from one of the pages of Forrest Mims many books. I used this exact circuit to indicate the speed of a pt2399 delay using a stacked 100K potentiometer. One level of the pot controlled the speed of the actual delay circuit, while the other level of the pot simultaneously controlled the speed of the LED chaser. The times didn't exactly line up but it's really close and the idea/effect is really cool. This also isn't too far from how one would go about making a sequencer or 'music box'.