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Model A-12

A vintage valve amplifier.
A repair interaction waiting to happen.

A fictional, unbranded amplifier inspired by the late 1950s and early 1960s. Lift the cage, work on the components, and bring the valves back to life through a visible repair and power-test flow.

Inside the asset ↓
Model A-12 with its cage fitted and pilot lamp illuminated
Unity capture
01 / Closed

A complete object.

The cage is fitted. This repaired device is shown powered, with the pilot lamp and valve heaters lit.

Open Model A-12 with exposed valves and removed cage beside the chassis
Detail from a Unity capture
02 / Open

Look beneath the cage.

Remove the cover to reach the valve assembly. The demo starts with a blown fuse and an unseated rectifier.

Staged breakdown of the amplifier cage, valves and chassis
Component breakdown · Unity capture
03 / Repair

Put the parts to work.

Reseat the rectifier and replace the blown fuse. This component breakdown shows the separate pieces behind the repair interaction.

Model A-12 after repair with cage fitted, pilot lamp and valve heaters illuminated
Repaired and powered · Unity capture
04 / Power

Test the repair.

Refit the cage and switch on. A successful repair lights the pilot lamp and valve heaters; an unresolved fault fails the power test.

Explore the captured states. This is an image walkthrough of the Unity asset.

Editor tested
Unity 6000.5.9f1
Render pipeline
URP 17.5.0
Test environment
Windows Editor
Content
One interactive device
A complete repair moment

Open. Repair. Light up.

Component states and animated actions make the object’s condition visible.

01 / Inspect

Get under the cage.

Lift off the perforated cover and inspect the valve assembly. The demo begins with a blown fuse and an unseated rectifier.

02 / Repair

Make the change.

Reseat the rectifier, remove the blown fuse, and fit its replacement. Replaceable valve variants and eased component motion are included.

03 / Test

Bring it to life.

Refit the cage and switch on. A successful repair brings up the pilot lamp and valve heaters. An unresolved fault fails the power test.

Made to adapt

Start with a working object.

Use it as a hero prop or the basis of a repair interaction in a workshop, puzzle, horror, or simulation scene. Open the supplied implementation and connect it to your own game.

The included repair behavior is scoped to this device. It is not a complete workshop game or a general-purpose repair framework.

Included content

  • Assembled device and component prefabs
  • Three mesh LODs and URP materials
  • Repair-state scripts and editable fault definitions
  • A mouse-driven Unity demo scene
  • Editable source content and buyer documentation
Before you bring it in

Compatibility,
clearly stated.

Tested in Unity 6000.5.9f1 with URP 17.5.0 on the Windows Editor. Other Unity versions, platforms, HDRP, and the Built-in Render Pipeline have not been tested.

  • The demo uses the classic Input Manager. Set Active Input Handling to Input Manager (Old) or Both.
  • The demo has no audio or UI text.
  • Glass uses URP Lit Transparent; it is not refractive.
  • The demo bench and backdrop are simple, untextured primitives.
Get setup help
A clear path to help

Let’s make the issue reproducible.

Start with your product, Unity version, and the steps that led you here. We’ll have the detail needed to investigate.

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