User:MentalMouse42/Sandbox/Dropper-DropperClock

7x4; Based on video https://www.youtube.com/watch?v=KJLxY6q7GxA?t=85 Apr 24, 2018
 * Earliest known publication: Apr 24, 2018

Start by placing items in either dropper, the half-period is 0.4s per item. Output can be taken from any dust, but all are unstable.