The comparator (unlike the repeater) was followed by several pulses we used button, not now.

Before, to power a comparator connected to a dispenser/dropper (like a repeater) was more of a pulse (be repeated constantly leaving empty the dispenser/dropper). With a stone button, gave 6-8 pulses, and a wooden button, gave 4 pulses. Now this does not happen, it behaves as a comparator.