Minecraft: Redstone Comperator Pulse lengthener / extender - video Dailymotion
The smallest pulse extender - YouTube
This Is Called a Pulse Extender After You Press the Button the Redstone Will Retain Its Charge for a Bit Then Turn Off Show This to Pewdiepie So His Next Horse Won't
Custom Pulse Lengthener Tutorial Minecraft Map
Pulse Extender - With 2 Comparators (3 x 2 x 1) : redstone