Redstone Repeater

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Redstone Repeater
Redstone Repeater (S) JE5 BE2.pngRedstone Repeater Delay 2 (S) JE5 BE2.pngRedstone Repeater Delay 3 (S) JE5 BE2.pngRedstone Repeater Delay 4 (S) JE5 BE2.pngPowered Redstone Repeater (S) JE9.pngPowered Redstone Repeater Delay 2 (S) JE9.pngPowered Redstone Repeater Delay 3 (S) JE9.pngPowered Redstone Repeater Delay 4 (S) JE9.png
Locked Redstone Repeater (S) JE6 BE2.pngLocked Redstone Repeater Delay 2 (S) JE6 BE2.pngLocked Redstone Repeater Delay 3 (S) JE6 BE2.pngLocked Redstone Repeater Delay 4 (S) JE6 BE2.pngPowered Locked Redstone Repeater (S) JE7.pngPowered Locked Redstone Repeater Delay 2 (S) JE7.pngPowered Locked Redstone Repeater Delay 3 (S) JE7.pngPowered Locked Redstone Repeater Delay 4 (S) JE7.png
Redstone Repeater (S) BE2.pngRedstone Repeater Delay 2 (S) BE2.pngRedstone Repeater Delay 3 (S) BE2.pngRedstone Repeater Delay 4 (S) BE2.pngPowered Redstone Repeater (S) BE2.pngPowered Redstone Repeater Delay 2 (S) BE2.pngPowered Redstone Repeater Delay 3 (S) BE2.pngPowered Redstone Repeater Delay 4 (S) BE2.png
Locked Redstone Repeater (S) BE2.pngLocked Redstone Repeater Delay 2 (S) BE2.pngLocked Redstone Repeater Delay 3 (S) BE2.pngLocked Redstone Repeater Delay 4 (S) BE2.pngPowered Locked Redstone Repeater (S) BE2.pngPowered Locked Redstone Repeater Delay 2 (S) BE2.pngPowered Locked Redstone Repeater Delay 3 (S) BE2.pngPowered Locked Redstone Repeater Delay 4 (S) BE2.png
Renewable

Yes

Stackable

Yes (64)

Tool

Any tool

Blast resistance

0

Hardness

0

Luminant

No

Transparent

Yes

Flammable

No

Catches fire from lava

No

This article is about the block. For repeater circuits, see Transmission circuit § Repeater. For other topics related to redstone, see Redstone (disambiguation).

A redstone repeater is a block used in redstone circuits to "repeat" redstone signals back to full strength, delay signals, prevent signals moving backwards, or to "lock" signals in one state.

Obtaining[edit]

A redstone repeater can be obtained by crafting, by looting jungle temples, or by breaking a previously-placed repeater.

Breaking[edit]

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 itself 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]

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

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

Crafting[edit]

Ingredients Crafting recipe
Redstone Torch +
Redstone Dust +
Stone

Usage[edit]

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 backwards, 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]

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]

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]

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, instant repeater circuits are possible (circuits that repeat a signal with no delay).

In Bedrock Edition, the first repeater have a delay of zero but the repeater is still showing 1-tick[more information needed]

Signal direction[edit]

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]

The left repeater has been locked in an unpowered output state by the right repeater.
Locked Redstone Repeater (S) JE6 BE2.pngPowered Locked Redstone Repeater (S) JE7.png

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]

Java Edition:

SoundSubtitleSourceDescriptionNamespaced IDTranslation keyVolumePitchAttenuation
distance
Block brokenBlocksOnce the block has brokenblock.wood.breaksubtitles.block.generic.break1.00.816
None[sound 1]BlocksFalling on the block with fall damageblock.wood.fallNone[sound 1]0.50.7516
Block breakingBlocksWhile the block is in the process of being brokenblock.wood.hitsubtitles.block.generic.hit0.250.516
Block placedBlocksWhen the block is placedblock.wood.placesubtitles.block.generic.place1.00.816
FootstepsBlocksWalking on the blockblock.wood.stepsubtitles.block.generic.footsteps0.151.016
  1. a b MC-177082

Bedrock Edition:

SoundSourceDescriptionNamespaced IDVolumePitch
?BlocksOnce the block has brokendig.wood1.00.8
?BlocksFalling on the block with fall damagefall.wood0.41.0
?BlocksWhile the block is in the process of being brokenhit.wood0.230.5
?BlocksJumping from the blockjump.wood0.121.0
?BlocksFalling on the block without fall damageland.wood0.181.0
?BlocksWalking on the blockstep.wood0.31.0
?BlocksWhen the block is placeduse.wood1.00.8

Data values[edit]

ID[edit]

Java Edition:

NameNamespaced IDFormTranslation key
Redstone RepeaterrepeaterBlock & Itemblock.minecraft.repeater

Bedrock Edition:

Redstone RepeaterNamespaced IDNumeric ID FormTranslation key
Unpowered blockunpowered_repeater93Blocktile.unpowered_repeater.name
Powered blockpowered_repeater94Blocktile.powered_repeater.name
Itemrepeater356Itemitem.repeater.name

Metadata[edit]

See also: Data values

In Bedrock Edition, redstone repeaters block use the following data values:

Bits Values
0x1
0x2
A two-bit field storing a value from 0 to 3 specifying the direction the redstone repeater is facing:
  • 0: Facing north.
  • 1: Facing east.
  • 2: Facing south.
  • 3: Facing west.
0x4
0x8
A two-bit field storing a value from 0 to 3 specifying the redstone repeater's delay:
  • 0: Delay of 1 redstone tick.
  • 1: Delay of 2 redstone tick.
  • 2: Delay of 3 redstone tick.
  • 3: Delay of 4 redstone tick.

Effectively, add the repeater's facing value (0 to 3) to 4×(delay-1). For example, a repeater facing west with a delay of 3 redstone ticks would have a block data value of 3 + 4×(3-1) = 11.

Block states[edit]

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:

Name Default value Allowed values Description
repeater_delay00
1
2
3
The redstone repeater's delay in redstone ticks minus 1.
direction00
1
2
3
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.

Video[edit]

History[edit]

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
1.3Redstone Repeater (S) JE1.png Redstone Repeater (item) JE1.png 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 particle when breaking redstone repeaters is currently a smooth stone slab top texture, even though none of the elements on the model use it.
1.7Redstone Repeater (S) JE2.png The side texture of redstone repeaters has been changed to the previous bottom part of the texture.
Java Edition
?The breaking particle of restone repeaters has been changed to an unlit redstone torch when unpowered and a lit redstone torch when powered.
1.3.112w22aRedstone repeaters now naturally generate inside jungle temples.
1.3Redstone Repeater (item) JE2 BE1.png The texture of redstone repeater items have been changed.
1.4.212w42aRedstone Repeater (S) JE3.png The top texture of redstone repeaters has now been changed.
Locked Redstone Repeater (S) JE1 BE1.png 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.
1.513w02aRedstone Repeater (S) JE4 BE1.png The side textures of redstone repeaters have been changed to use the top texture of stone slabs.
?The breaking particle of redstone repeaters has been changed once again and now matches the top texture of redstone repeaters.
1.8?Repeaters no longer produce block light when powered.
14w10aPowered Redstone Repeater (S) JE5.png Torches on repeaters now no longer have protruding features.
The torches underneath redstone repeaters have now been shortened, which has changed the underside textures from Redstone Repeater (Underside) JE2 BE1.pngRedstone Repeater Delay 2 (Underside) JE2 BE1.pngRedstone Repeater Delay 3 (Underside) JE2 BE1.pngRedstone Repeater Delay 4 (Underside) JE2 BE1.pngActive Redstone Repeater (Underside) JE2 BE1.pngActive Redstone Repeater Delay 2 (Underside) JE2 BE1.pngActive Redstone Repeater Delay 3 (Underside) JE2 BE1.pngActive Redstone Repeater Delay 4 (Underside) JE2 BE1.pngLocked Redstone Repeater (Underside) JE2 BE1.pngLocked Redstone Repeater Delay 2 (Underside) JE2 BE1.pngLocked Redstone Repeater Delay 3 (Underside) JE2 BE1.pngLocked Redstone Repeater Delay 4 (Underside) JE2 BE1.pngActive Locked Redstone Repeater (Underside) JE2 BE1.pngActive Locked Redstone Repeater Delay 2 (Underside) JE2 BE1.pngActive Locked Redstone Repeater Delay 3 (Underside) JE2 BE1.pngActive Locked Redstone Repeater Delay 4 (Underside) JE2 BE1.png to Redstone Repeater (Underside) JE3.pngRedstone Repeater Delay 2 (Underside) JE3.pngRedstone Repeater Delay 3 (Underside) JE3.pngRedstone Repeater Delay 4 (Underside) JE3.pngActive Redstone Repeater (Underside) JE3.pngActive Redstone Repeater Delay 2 (Underside) JE3.pngActive Redstone Repeater Delay 3 (Underside) JE3.pngActive Redstone Repeater Delay 4 (Underside) JE3.pngLocked Redstone Repeater (Underside) JE3.pngLocked Redstone Repeater Delay 2 (Underside) JE3.pngLocked Redstone Repeater Delay 3 (Underside) JE3.pngLocked Redstone Repeater Delay 4 (Underside) JE3.pngLocked Active Redstone Repeater (Underside) JE3.pngLocked Active Redstone Repeater Delay 2 (Underside) JE3.pngLocked Active Redstone Repeater Delay 3 (Underside) JE3.pngLocked Active Redstone Repeater Delay 4 (Underside) JE3.png.
14w10bPowered Redstone Repeater (S) JE4.png Repeater torches now have protruding features again.[3]
?Powered Redstone Repeater (S) JE7.png The torches on redstone repeaters are now affected by ambeint occlusion.
1.1317w47aAll 3 IDs for the redstone repeater have now 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 Redstone Repeater (Underside) JE3.pngRedstone Repeater Delay 2 (Underside) JE3.pngRedstone Repeater Delay 3 (Underside) JE3.pngRedstone Repeater Delay 4 (Underside) JE3.pngActive Redstone Repeater (Underside) JE3.pngActive Redstone Repeater Delay 2 (Underside) JE3.pngActive Redstone Repeater Delay 3 (Underside) JE3.pngActive Redstone Repeater Delay 4 (Underside) JE3.pngLocked Redstone Repeater (Underside) JE3.pngLocked Redstone Repeater Delay 2 (Underside) JE3.pngLocked Redstone Repeater Delay 3 (Underside) JE3.pngLocked Redstone Repeater Delay 4 (Underside) JE3.pngLocked Active Redstone Repeater (Underside) JE3.pngLocked Active Redstone Repeater Delay 2 (Underside) JE3.pngLocked Active Redstone Repeater Delay 3 (Underside) JE3.pngLocked Active Redstone Repeater Delay 4 (Underside) JE3.png to Redstone Repeater (Underside) JE4 BE2.pngRedstone Repeater Delay 2 (Underside) JE4 BE2.pngRedstone Repeater Delay 2 (Underside) JE4 BE2.pngRedstone Repeater Delay 2 (Underside) JE4 BE2.pngActive Redstone Repeater (Underside) JE4 BE2.pngActive Redstone Repeater Delay 2 (Underside) JE4 BE2.pngActive Redstone Repeater Delay 3 (Underside) JE4 BE2.pngActive Redstone Repeater Delay 4 (Underside) JE4 BE2.pngLocked Redstone Repeater (Underside) JE4 BE2.pngLocked Redstone Repeater Delay 2 (Underside) JE4 BE2.pngLocked Redstone Repeater Delay 3 (Underside) JE4 BE2.pngLocked Redstone Repeater Delay 4 (Underside) JE4 BE2.pngLocked Active Redstone Repeater (Underside) JE4 BE2.pngLocked Active Redstone Repeater Delay 2 (Underside) JE4 BE2.pngLocked Active Redstone Repeater Delay 3 (Underside) JE4 BE2.pngLocked Active Redstone Repeater Delay 4 (Underside) JE4 BE2.png.
Prior to The Flattening, these blocks' numeral IDs were 93 and 94, and the item's 356.
1.1418w43aRedstone Repeater (S) JE5 BE2.png Powered Redstone Repeater (S) JE9.png Locked Redstone Repeater (S) JE5.png Powered Locked Redstone Repeater (S) JE6.png Redstone Repeater (item) JE3 BE2.png The textures of redstone repeaters have now been changed.
18w50aLocked Redstone Repeater (S) JE6 BE2.png Powered Locked Redstone Repeater (S) JE7.png As the texture of bedrock has been changed, the textures of locked redstone repeaters have also now been changed.
19w12bRedstone repeaters can now be placed on glass, ice, glowstone and sea lanterns.
Pocket Edition Alpha
v0.14.0build 1Redstone Repeater (S) JE3.png Redstone Repeater (item) JE2 BE1.png Added redstone repeaters.
Bedrock Edition
1.2.0beta 1.2.0.2Redstone repeaters now render their underside, which has changed their undersides from Redstone Repeater (Underside) JE2 BE1.pngRedstone Repeater Delay 2 (Underside) JE2 BE1.pngRedstone Repeater Delay 3 (Underside) JE2 BE1.pngRedstone Repeater Delay 4 (Underside) JE2 BE1.pngActive Redstone Repeater (Underside) JE2 BE1.pngActive Redstone Repeater Delay 2 (Underside) JE2 BE1.pngActive Redstone Repeater Delay 3 (Underside) JE2 BE1.pngActive Redstone Repeater Delay 4 (Underside) JE2 BE1.pngLocked Redstone Repeater (Underside) JE2 BE1.pngLocked Redstone Repeater Delay 2 (Underside) JE2 BE1.pngLocked Redstone Repeater Delay 3 (Underside) JE2 BE1.pngLocked Redstone Repeater Delay 4 (Underside) JE2 BE1.pngActive Locked Redstone Repeater (Underside) JE2 BE1.pngActive Locked Redstone Repeater Delay 2 (Underside) JE2 BE1.pngActive Locked Redstone Repeater Delay 3 (Underside) JE2 BE1.pngActive Locked Redstone Repeater Delay 4 (Underside) JE2 BE1.png to Redstone Repeater (Underside) JE4 BE2.pngRedstone Repeater Delay 2 (Underside) JE4 BE2.pngRedstone Repeater Delay 2 (Underside) JE4 BE2.pngRedstone Repeater Delay 2 (Underside) JE4 BE2.pngActive Redstone Repeater (Underside) JE4 BE2.pngActive Redstone Repeater Delay 2 (Underside) JE4 BE2.pngActive Redstone Repeater Delay 3 (Underside) JE4 BE2.pngActive Redstone Repeater Delay 4 (Underside) JE4 BE2.pngLocked Redstone Repeater (Underside) JE4 BE2.pngLocked Redstone Repeater Delay 2 (Underside) JE4 BE2.pngLocked Redstone Repeater Delay 3 (Underside) JE4 BE2.pngLocked Redstone Repeater Delay 4 (Underside) JE4 BE2.pngLocked Active Redstone Repeater (Underside) JE4 BE2.pngLocked Active Redstone Repeater Delay 2 (Underside) JE4 BE2.pngLocked Active Redstone Repeater Delay 3 (Underside) JE4 BE2.pngLocked Active Redstone Repeater Delay 4 (Underside) JE4 BE2.png.
1.10.0beta 1.10.0.3Redstone Repeater (S) BE2.png Powered Redstone Repeater (S) BE2.png Redstone Repeater (item) JE3 BE2.png The textures of redstone repeaters have now been changed.
Legacy Console Edition
TU1CU1 1.0 Patch 11.0.1Redstone Repeater (S) JE3.png[verify] Redstone Repeater (item) JE2 BE1.png Added redstone repeaters.
TU19CU7 1.12 Locked Redstone Repeater (S) JE1 BE1.png[verify] Added repeater locking to redstone repeaters.
1.90 Redstone Repeater (S) JE4 BE1.png[verify] Redstone Repeater (item) JE3 BE2.png The textures of redstone repeaters have now been changed.
New Nintendo 3DS Edition
0.1.0Redstone Repeater (S) JE3.png[verify] Redstone Repeater (item) JE2 BE1.png Added redstone repeaters and repeater locking.

Redstone repeater "items"[edit]

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
1.3Smooth Stone Slab (side texture) JE1 BE1.png Smooth Stone Slab (side texture) JE1 BE1.png Both unpowered and powered repeaters have extra, unobtainable item forms corresponding to their block IDs, which use the smooth stone slab side texture. They can be obtained via inventory editors with numeric item IDs 93 and 94.
Highlighting either item in the inventory shows an empty text box of minimum length.
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.
Their names are announced as tile.comparator.name in chat when given via the /give command.
1.513w02aOff Redstone Repeater (texture) JE2 BE2.png On Redstone Repeater (texture) JE2 BE2.png Due to texture location reforms, the direct item forms in the inventory now show the respective top textures, making the unpowered and powered variants distinguishable.
1.6.113w25cBoth items are now called tile.diode.name in the inventory.
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
?Redstone repeaters probably exist as an item.

Issues[edit]

Issues relating to "Redstone Repeater" are maintained on the bug tracker. Report issues there.

Trivia[edit]

  • The recipe and appearence of redstone repeaters are a likely reference to the old method of repeating signals, which would also use two torches at a time, inverting each other

Gallery[edit]

References[edit]