This page is about the signal-repeating redstone device. For the comparison device, see Redstone Comparator.
Redstone Repeaters are quite complex devices. They have several uses, including in diodes and "repeating" signals.
True to their name, Redstone Repeaters can "repeat" a signal, powering it back to full strength. This is useful for long Redstone lines where just dust would lose its power in 15 blocks (this makes it possible to be safe when detonating a large amount of TNT; the surgeon general says that standing next to a block of TNT that's exploding may be hazardous to your health).
DelayingBy default, Redstone Repeaters take 1 game tick to transmit a signal to the next block. This can be lengthened by right-clicking. 1 click equals 2 ticks delay; 2 clicks equals 3 ticks delay; and 3 clicks equals 4 ticks delay.
"Strong" and "Weak" Signals
When a powered Redstone Repeater faces an opaque block, the opaque block will become a power source of its own (similarly to a Block of Redstone) as long as the repeater is powered. In contrast, just redstone wire will not turn an opaque block into a power source.
CraftingCrafting requires 1 Redstone, 2 Redstone Torches, and 3 Stone.
|Liquids||Water • Lava|
|Redstone||Piston Extension • Redstone Wire • Redstone Torch (Off) • Redstone Lamp (On) • Redstone Repeater (On) • Redstone Comparator (On)|
|Plants||Nether Wart (Growing) • Potato (Growing) • Carrot (Growing) • Wheat (Growing)|
|Misc||Fire • End Portal (Block) • Nether Portal (Block) • Locked Chest|
|Crafted Blocks||Brick (Block) • Beacon • Redstone Torch • Block of Diamond • Block of Emerald • Block of Gold • Block of Redstone • Block of Iron • Block of Coal • Block of Lapis Lazuli • Flower Pot • Item Frame • Hopper • Dropper • Dispenser • Lever • Pressure Plate • Button • Door • Trapdoor • Polished Andesite • Polished Diorite • Slab • Bookshelf • Jack o'Lantern • Stained Glass • Stained Clay • Block of Quartz • Chest • Crafting Table • Furnace • Anvil • Enchantment Table • Ender Chest • Trapped Chest • Stained Glass Pane • Slime Block • Bed • Note Block • Sticky Piston • Redstone Lamp • Fence Gate • Redstone Repeater • Redstone Comparator • Powered Rail • Activator Rail • Boat • Minecart • Minecart with Furnace • Cake • Brewing Stand • Cauldron|