JUKEBOX
Plays music discs and outputs a comparator signal based on which disc is inserted. Each of the 16 music discs produces a unique signal strength from 1 to 15.
Crafting Recipe
8 Wooden Planks + 1 Diamond → 1 Jukebox
Signal Behavior
Input
InputMusic disc insertion
Output
OutputComparator signal 1-15 based on disc type
Max Signal Strength
Max Signal Strength15
Delay
DelayInstant on disc insertion
Modes
- Playing (with disc)
- Empty (no disc)
Overview: what the Jukebox is and does
Plays music discs and outputs a comparator signal based on which disc is inserted. Each of the 16 music discs produces a unique signal strength from 1 to 15.
As a trigger it watches the world for an event and converts that event into a redstone signal. It is a music player that also encodes which disc is inside as a comparator value, useful for hidden combination inputs.
The Jukebox was added to Minecraft in Alpha 1.0.14 and everything described here reflects its behaviour in Java Edition 1.21.
How it works: the redstone mechanics
On the input side, music disc insertion. On the output side, comparator signal 1-15 based on disc type.
With a comparator against it, each of the music discs yields its own fixed signal strength from 1 to 15, so the jukebox effectively reads which disc is loaded. The disc must be inserted and later removed by hand, and an empty jukebox reads 0.
It acts instantly with no redstone-tick delay of its own, so it adds nothing to the timing of a circuit.
It can output a maximum signal strength of 15, which travels 15 blocks through bare redstone dust before fading to nothing.
It operates in the following modes: playing (with disc) and empty (no disc).
How to set it up
- 1Craft the Jukebox: 8 Wooden Planks + 1 Diamond → 1 Jukebox.
- 2Decide where the signal needs to start or land, then place the Jukebox against a solid surface so it can see the event you want to detect.
- 3Lead the signal it produces into a repeater or dust line so the rest of your contraption can respond to the detected event.
- 4Test in a creative-mode plot first: trigger the input and confirm the Jukebox behaves exactly as the timing above predicts before committing it to a survival build.
Uses & applications
- ▸Disc-based combination locks
- ▸Music systems
- ▸Signal source selection
- ▸Hidden input devices
Tips & common mistakes
- !Each disc has a specific signal value
- !Cannot read signal without comparator
- !Disc must be manually removed
- !You cannot read the disc without a comparator, and each disc's value is fixed, so plan your lock around the specific discs you own.
Jukebox FAQ
What is the Jukebox used for in Minecraft redstone?
The Jukebox is most often used for disc-based combination locks, music systems, signal source selection, and hidden input devices. As a trigger it watches the world for an event and converts that event into a redstone signal.
What signal strength does the Jukebox output?
Comparator signal 1-15 based on disc type. Its maximum signal strength is 15.
How do you craft the Jukebox?
8 Wooden Planks + 1 Diamond → 1 Jukebox. It was introduced in Alpha 1.0.14.
What is the most common mistake with the Jukebox?
Each disc has a specific signal value. Cannot read signal without comparator.