Redstone Repeater

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This article is about the block. For repeater circuits, see Transmission circuit § Repeater. For other topics related to redstone, see Redstone (disambiguation).
Redstone Repeater
Redstone Repeater.png: Infobox image for Redstone Repeater the block in Minecraft

Java Edition

Redstone Repeater BE.png: Infobox image for Redstone Repeater the block in Minecraft

Bedrock Edition

Invicon Redstone Repeater.png: Inventory sprite for Redstone Repeater in Minecraft as shown in-game with description: Redstone Repeater
Renewable

Yes

Stackable

Yes (64)

Tool

Any tool

Blast resistance

0

Hardness

0

Luminous

No

Transparent

Yes

Waterloggable

JE: No
BE: Yes

Flammable

No

Catches fire from lava

No

A redstone repeater is a block that produces a full-strength redstone signal from its front while its back is powered, with four toggleable delay settings. It can also be locked into its current power state by directly powering its side with another repeater or a redstone comparator.

Obtaining[edit | edit source]

Breaking[edit | edit source]

A redstone repeater can be broken instantly using any tool, or without a tool, and drops itself as an item. To remove a redstone repeater, mine it.

A redstone repeater is removed and drops as an item if:

  • its attachment block is moved, removed, or destroyed;
  • water or lava flows into its space;‌[Java Edition only]
  • a piston tries to push it or moves a block into its space.

Natural generation[edit | edit source]

A redstone repeater generated in the jungle temple's hidden room.

A single redstone repeater is generated naturally in each jungle pyramid.

They can also generate in ancient cities.

Crafting[edit | edit source]

Ingredients Crafting recipe
Redstone Torch +
Redstone Dust +
Stone
Invicon Redstone Torch.png: Inventory sprite for Redstone Torch in Minecraft as shown in-game linking to Redstone Torch with description: Redstone TorchInvicon Redstone Dust.png: Inventory sprite for Redstone Dust in Minecraft as shown in-game linking to Redstone Dust with description: Redstone DustInvicon Redstone Torch.png: Inventory sprite for Redstone Torch in Minecraft as shown in-game linking to Redstone Torch with description: Redstone TorchInvicon Stone.png: Inventory sprite for Stone in Minecraft as shown in-game linking to Stone with description: StoneInvicon Stone.png: Inventory sprite for Stone in Minecraft as shown in-game linking to Stone with description: StoneInvicon Stone.png: Inventory sprite for Stone in Minecraft as shown in-game linking to Stone with description: Stone
Invicon Redstone Repeater.png: Inventory sprite for Redstone Repeater in Minecraft as shown in-game with description: Redstone Repeater

Usage[edit | edit source]

See also: Redstone circuit

A redstone repeater can be used in four different ways: to "repeat" redstone signals back to full strength, delay signals, prevent signals moving backward, or to "lock" signals in one state.

A repeater can be placed only on top of opaque blocks (dirt, stone, etc.), on top of upside-down slabs, upside-down stairs, furnaces, and glass. In Bedrock Edition, a repeater can also be placed on fences and stone walls. They can also be placed on some transparent blocks. See Opacity/Placement for more information. To place a repeater, use the Place Block control.

A redstone repeater has a front and back – the arrow on the top points to the repeater's front. A repeater also has two small redstone torches on its top – the color of the torches indicates whether its output is on (dark red when off, bright red when on) and the distance between them indicates the delay the repeater adds to the signal transmission.

A repeater is 0.125 (18) blocks high.

Signal transmission[edit | edit source]

A repeater transmits signals only from its back to its front, but its behavior can be modified from the side (see signal locking, below).

Different ways to power a repeater

A redstone repeater can be powered by any of the following components at its back:

A redstone repeater can power any of the following components at its front:

  • redstone dust
  • a redstone comparator or another redstone repeater facing away from the repeater
  • any opaque block (including any opaque mechanism components)

A redstone repeater can activate any mechanism component it is facing.

An opaque block powered by a redstone repeater is called "strongly-powered" (as opposed to an opaque block "weakly-powered" by redstone dust). A strongly-powered opaque block can power adjacent redstone dust, as well as other redstone components.

Signal repeating[edit | edit source]

A redstone repeater can "repeat" a redstone signal, boosting it back up to power level 15.

Redstone signals have a maximum power level of 15 and that level drops by 1 for every block of redstone dust the signal travels through. If a signal must travel through more than 15 blocks of redstone dust, a redstone repeater can be used to boost the signal back up to full strength. An extra two blocks of distance can be achieved by placing solid opaque blocks before and after the repeater.

While redstone repeaters can allow signals to travel great distances, each always adds some delay to the transmission since the minimum amount of delay is 1 redstone tick (0.1 seconds, barring lag).

Signal delay[edit | edit source]

When initially placed, a redstone repeater has a delay of one redstone tick (equivalent to two game ticks, or 0.1 seconds barring lag).

A repeater's delay can be modified by using the Use Item control. Each use increases the repeater's delay by one redstone tick, to a maximum of four redstone ticks, then back to one redstone tick. Longer delays can be made with multiple repeaters – for example, a repeater set to 'four' and another to 'one' provides a half-second delay (0.4s + 0.1s = 0.5s).

A repeater set to a delay of two to four redstone ticks increases the length of any shorter on-pulse to match the length of the repeater's delay, and suppress any shorter off-pulse. For example, a repeater set to a 4-tick delay changes a 1-tick, 2-tick, or 3-tick on-pulse into a 4-tick on-pulse, and does not allow through any off-pulse shorter than 4 ticks.

Although a repeater cannot be set to have a delay of zero, in Java Edition, instant repeater circuits are possible (circuits that repeat a signal with no delay).

Signal direction[edit | edit source]

A redstone repeater acts as a diode – it allows redstone signals through in one direction (unlike redstone dust or opaque blocks that can transmit redstone signals in any direction).

A diode can be used to protect a redstone circuit from redstone signals feeding back into the circuit from its output, or can be used to isolate one part of a circuit from another.

Signal locking[edit | edit source]

The left repeater has been locked in an unpowered output state by the right repeater.

A redstone repeater can be "locked" by another powered redstone repeater facing its side. When locked, the repeater does not change its output (whether powered or unpowered), no matter what the input does. When the side repeater turns back off, the repeater returns to its normal behavior.

A repeater can also be locked by a powered redstone comparator facing its side. This offers additional possibilities for locking signals because a comparator's output can be affected from 3 sides as well as by containers.

If a repeater is locked again too quickly after unlocking (e.g. the lock is controlled by a fast clock circuit), or the lock and the input are changed only on the same tick (e.g. because they're fed by the same clock and both repeaters have the same delay), the repeater does not switch states.

Sounds[edit | edit source]

Java Edition:

BlockSprite stone.png: Sprite image for stone in Minecraft stone sound type
SoundSubtitlesSourceDescriptionResource locationTranslation keyVolumePitchAttenuation
distance
​Block brokenBlocksOnce the block has brokenblock.stone.breaksubtitles.block.generic.break1.00.816
​Block placedBlocksWhen the block is placedblock.stone.placesubtitles.block.generic.place1.00.816
​Block breakingBlocksWhile the block is in the process of being brokenblock.stone.hitsubtitles.block.generic.hit0.250.516
​Something falls on a block[upcoming JE 1.21.4][sound 1]Entity-DependentFalling on the block with fall damageblock.stone.fallsubtitles.block.generic.fall​​​[upcoming JE 1.21.4]0.50.7516
​FootstepsEntity-DependentWalking on the blockblock.stone.stepsubtitles.block.generic.footsteps0.151.016
  1. MC-177082 — block.[block type].fall sounds have no subtitles — resolved as "Fixed".

Bedrock Edition:

BlockSprite oak-planks.png: Sprite image for oak-planks in Minecraft wood sound type
SoundSourceDescriptionResource locationVolumePitch
BlocksOnce the block has brokendig.wood1.00.8-1.0
BlocksWhen the block is placeddig.wood1.00.8
BlocksWhile the block is in the process of being brokenhit.wood0.230.5
PlayersFalling on the block with fall damagefall.wood0.41.0
PlayersWalking on the blockstep.wood0.31.0
BlocksJumping from the blockjump.wood0.121.0
BlocksFalling on the block without fall damageland.wood0.181.0

Data values[edit | edit source]

ID[edit | edit source]

Java Edition:

NameIdentifierFormTranslation key
BlockSprite redstone-repeater.png: Sprite image for redstone-repeater in Minecraft Redstone RepeaterrepeaterBlock & Itemblock.minecraft.repeater

Bedrock Edition:

Redstone RepeaterIdentifierNumeric ID FormItem ID[i 1]Translation key
BlockSprite redstone-repeater-off.png: Sprite image for redstone-repeater-off in Minecraft Unpowered blockunpowered_repeater93Block & Ungiveable Item[i 2]Identical[i 3]
BlockSprite redstone-repeater-on.png: Sprite image for redstone-repeater-on in Minecraft Powered blockpowered_repeater94Block & Ungiveable Item[i 2]Identical[i 3]
ItemSprite redstone-repeater.png: Sprite image for redstone-repeater in Minecraft Itemrepeater419Itemitem.repeater.name
  1. ID of block's direct item form, which is used in savegame files and addons.
  2. a b Unavailable with /give command
  3. a b The block's direct item form has the same ID as the block.

Block states[edit | edit source]

See also: Block states

Java Edition:

Name Default value Allowed values Description
delay11
2
3
4
The redstone repeater's delay in redstone ticks.
facingnortheast
north
south
west
The direction from the output side to the input side of a repeater.
The opposite from the direction the player faces while placing the repeater.
lockedfalsefalse
true
True if the repeater is currently locked.
poweredfalsefalse
true
If the redstone repeater is lit.

Bedrock Edition:

NameMetadata Bits Default value Allowed valuesValues for
Metadata Bits
Description
minecraft:cardinal_directionNot Supportedsoutheast
north
south
west
UnsupportedThe direction from the output side to the input side of a repeater.
The opposite from the direction the player faces while placing the repeater.
repeater_delay0x4
0x8
00
1
2
3
0
1
2
3
The redstone repeater's delay in redstone ticks minus 1.


Video[edit | edit source]

Note: This Video is from Java Edition 1.5 so the video does not tell that Redstone repeaters can now be placed on glass, ice, glowstone and sea lanterns.

History[edit | edit source]

For a more in-depth breakdown of changes to repeater textures and models, including a set of renders for each state combination, see /Asset history

Java Edition Beta
1.3 Added redstone repeaters.
Originally, the four possible settings were "1, 2, 5 and 7",[1] but Jeb decided to change the settings to "1, 2, 3, and 4".[2]
The particles when breaking redstone repeaters erroneously use the pumpkin top texture.
1.6Test Build 3The breaking particles of redstone repeaters now use the stone slab top texture, even though none of the elements on the model use it.
1.7 The side texture of redstone repeaters has been changed to the previous bottom part of the texture.
The breaking particles of redstone repeaters have been changed to a mix of stone slab, unlit redstone torch and unpowered repeater top when unpowered and a stone slab, lit redstone torch and powered repeater when powered.
Redstone dust now automatically connects to the input of a redstone repeater. Previously, it needed to be specifically pointed toward the repeater like with other blocks.
1.7.3The breaking particles of redstone repeaters have been changed to simply an unlit redstone torch when unpowered and a lit redstone torch when powered.
Java Edition
1.0.0RC1Redstone dust now visually connects to the output of redstone repeaters, though this does not change its behavior.
1.3.112w22aRedstone repeaters now naturally generate inside jungle temples.
1.3 The texture of redstone repeater items have been changed.
1.4.212w42a The top texture of redstone repeaters has been changed.
Added repeater locking to redstone repeaters. Interestingly, the smallest face of the bedrock cuboid's texture changes depending on the delay, but the other two faces remain the same. When/if this changed is unknown.
1.513w02a The side textures of redstone repeaters have been changed to use the top texture of stone slabs.
1.814w06aRepeaters no longer produce block light when powered.
14w10a Torches on repeaters no longer have protruding features.
The torches underneath redstone repeaters have been shortened, which has changed the underside textures from to .
14w10b Repeater torches now have protruding features again.[3]
14w25a The torches on redstone repeaters are now affected by directional shading.
The breaking particle of redstone repeaters has been changed once again and now matches the top texture of redstone repeaters.
1.1317w47aAll 3 IDs for the redstone repeater have been merged into 1 ID: repeater.
Added powered block state to redstone repeaters.
Redstone repeaters now render their underside, which has changed their undersides from to .
Prior to The Flattening, these blocks' numeral IDs were 93 and 94, and the item's 356.
1.1418w43a The textures of redstone repeaters have been changed.
18w50a As the texture of bedrock has been changed, the textures of locked redstone repeaters have also been changed.
19w12bRedstone repeaters can now be placed on glass, ice, glowstone and sea lanterns.
1.1922w13aRedstone repeaters now generate in ancient cities.
1.20.223w33aRedstone repeaters now use stone sounds instead of wood sounds.[4]
1.21.224w33a The powered models for redstone repeaters have changed.
Pocket Edition Alpha
v0.14.0build 1 Added redstone repeaters.
Bedrock Edition
1.2.0beta 1.2.0.2Redstone repeaters now render their underside, which has changed their undersides from to .
1.10.0beta 1.10.0.3 The textures of redstone repeaters have been changed.
1.20.30Preview 1.20.30.20Redstone repeaters now use the minecraft:cardinal_direction block state instead of direction.
Legacy Console Edition
Xbox 360Xbox OnePS3PS4PS VitaWii USwitch
TU1CU11.001.001.00Patch 11.0.1 Added redstone repeaters.
TU19CU71.121.121.12[verify] Added repeater locking to redstone repeaters.
TU57CU491.571.561.56Patch 271.0.7Redstone Repeaters can now be crafted from granite, andesite, diorite and their polished variants.
1.90 The textures of redstone repeaters have been changed.
New Nintendo 3DS Edition
0.1.0 Added redstone repeaters and repeater locking.

Redstone repeater "items"[edit | edit source]

The following content is transcluded from Technical blocks/Redstone Repeater.
This section is missing information about: Pick Block functionality. 
Please expand the section to include this information. Further details may exist on the talk page.
Java Edition Beta
1.3Both unpowered and powered repeaters have extra, unobtainable item forms corresponding to their block IDs. They can be obtained via inventory editors with numeric item IDs 93 and 94.
1.6Test Build 3Unpowered redstone repeater items can be obtained from the newly added debug chests, mainly from the 8th slot of the 4th chest from the left, and the 22nd slot of the 7th chest from the left.
Powered redstone repeater items can be obtained from the newly added debug chests, mainly from the 9th slot of the 4th chest from the left, and the 23rd slot of the 7th chest from the left.
releaseDebug chests no longer spawn, preventing unpowered and powered redstone repeater items from being obtained this way.
Java Edition
1.3.112w16aUnpowered and powered items can now be obtained in singleplayer worlds via the /give command using the respective numeric ID.
1.7.213w37aThe direct item forms of unpowered and powered repeaters have been removed from the game. They can no longer exist as an item in any way, only as a placed block.
Pocket Edition Alpha
v0.14.0Redstone repeaters exist as an item.

Appearances[edit | edit source]

Unpowered Repeater[edit | edit source]
Java Edition Beta
1.3 The unpowered repeater item uses this texture in inventories, when held in first or third person view or as a dropped item.
Java Edition
1.4.212w34aThe unpowered repeater item now uses the aforementioned texture when in an item frame.
1.513w02a The unpowered repeater item now uses this texture in inventories, when held in first or third person view, as a dropped item or when in an item frame.
This is due to major texture storage changes in this version.
Powered Repeater[edit | edit source]
Java Edition Beta
1.3 The powered repeater item uses this texture in inventories, when held in first or third person view or as a dropped item.
Java Edition
1.4.212w34aThe powered repeater item now uses the aforementioned texture when in an item frame.
1.513w02a The powered repeater item now uses this texture in inventories, when held in first or third person view, as a dropped item or when in an item frame.
This is due to major texture storage changes in this version.
Pocket Edition Alpha
v0.14.0 Powered repeaters use this texture.[5]
Bedrock Edition
1.10.0beta 1.10.0.3 Powered repeaters use this texture.[6]

Names[edit | edit source]

This section is missing information about: Expected b1.9 crash. 
Please expand the section to include this information. Further details may exist on the talk page.
Unpowered Repeater[edit | edit source]
Java Edition

Item names did not exist prior to Beta 1.0.

  • Beta 1.3 - 13w25b: [Has no defined name, rendering a minimum-length text box if highlighted]
  • 13w25c - 13w36b: tile.diode.name

When given using the /give command, it is announced as tile.diode.name.

Powered Repeater[edit | edit source]
Java Edition

Item names did not exist prior to Beta 1.0.

  • Beta 1.3 - 13w25b: [Has no defined name, rendering a minimum-length text box if highlighted]
  • 13w25c - 13w36b: tile.diode.name

When given using the /give command, it is announced as tile.diode.name.

Issues[edit | edit source]

Issues relating to "Repeater*" are maintained on the bug tracker. Issues should be reported and viewed there.

Trivia[edit | edit source]

  • The crafting recipe and appearance of redstone repeaters may be a reference to double torch repeaters, which was a common way to repeat signals before repeaters were introduced.

Gallery[edit | edit source]

Renders[edit | edit source]

Java Edition[edit | edit source]

Bedrock Edition[edit | edit source]

Contraption[edit | edit source]

Screenshots[edit | edit source]

In other media[edit | edit source]

References[edit | edit source]

Navigation[edit | edit source]