6E2 Vacuum Tube VU Meter Board | USB 5V Audio Level Indicator
6E2 Vacuum Tube VU Meter Board | USB 5V Audio Level Indicator
6E2 Cat's-Eye Vacuum Tube VU Meter Board
Bring a stunning retro glow to your audio setup with this 6E2 Cat's-Eye Vacuum Tube VU Meter Board. Powered by a standard USB 5V supply, this dual-channel audio level indicator combines vintage aesthetics with modern functionality — perfect for Hi-Fi systems, car audio rigs, home studios, and retro-themed décor.
Key Features
- Upgraded Built-In Microphone: A high-sensitivity onboard microphone responds to ambient music without needing an audio cable. Easily switch between microphone and audio cable mode via a dedicated switch.
- Dual Audio Interface: Gold-plated, oxidation-resistant audio jacks allow easy plug-and-play input/output connection, compatible with most audio equipment.
- Intelligent Display Mode: Single-board dual-channel level indication with left/right channel switching. A high-frequency attenuation switch enhances bass and drum rhythm response for a more dynamic, rhythmic visual display.
- Adjustable Sensitivity Knob: A slide knob lets you fine-tune sensitivity quickly and intuitively — no tools required.
- Decorative LED Lighting: Onboard LED accent lights, independently controlled by switch, create an immersive retro atmosphere.
- Stable Power Management: Built-in 6.3V voltage regulator circuit ensures a consistent filament voltage for the 6E2 vacuum tube, maximising its lifespan.
- Premium Construction: PCB and ABS build with a protective bracket and pre-assembled acrylic shell — ready to display right out of the box, no assembly or film-peeling needed.
- USB 5V Powered: Works with any standard USB power source; USB adapter and cable are included.
Specifications
| Material | PCB, ABS |
| Color | Black |
| Board Size | 86 mm × 52 mm |
| Display Mode | Left Channel / Right Channel (switchable) |
| Power Supply | USB 5V |
| Filament Voltage | 6.3V (regulated onboard) |
| Adjustment Controls | Sliding sensitivity knob; high-frequency attenuation switch |
| Country of Origin | Made in Mainland China |
Applications
- Car audio level indicator
- Home Hi-Fi system decoration
- Retro-style collectible or ornament
- Music beat visualisation device
What's in the Box
- 1 × 6E2 Vacuum Tube Driver Board
- 1 × 6E2 Cat's-Eye Tube
- 1 × USB Adapter
- 1 × Audio Cable
- 1 × Charging Cable
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Note: Actual colours may vary slightly from on-screen images due to monitor brightness and ambient lighting. Please allow minor measurement tolerances of ±1–2 mm.
Learn more: ENERGY STAR product efficiency guidance
Frequently Asked Questions
Q: What power supply does the 6E2 VU Meter Board require?
A: The board is powered by a standard USB 5V supply. A USB adapter and cable are included in the package, so no additional power source is needed.
Q: Can the 6E2 VU Meter Board work without an audio cable connection?
A: Yes! The board features a built-in high-sensitivity microphone that responds to ambient music, so it can display audio levels without any cable. You can switch between microphone mode and audio cable (wired) mode using the onboard switch.
Q: Is any assembly required before use?
A: No assembly is needed. The protective bracket and acrylic shell come pre-assembled. Simply connect power and you're ready to enjoy the retro cat's-eye glow.
Q: Is this VU meter board compatible with car audio systems?
A: Yes. The dual gold-plated audio interfaces are compatible with most standard audio equipment, including car audio systems and home Hi-Fi setups. The sensitivity knob lets you dial in the ideal level for your specific source.