so, i was working on a project, when i discovered that repeaters don't experience torch burnout. using this, i created this very small rapid pulser. i personally don't have any use for it, but i figured that i may as well post it here, where someone else might find somewhere to put it.
it does require a small amount of setup. you need to send a short pulse (1-tick is best), and it will start up. then you can get rid of the connection to whatever sent the pulse, and you're left with this.