About This Item
Description
A six-output, multi-voltage isolated power supply built for real pedalboards — the Fuel Tank Chameleon delivers 9 V DC, 12 V DC and 18 V DC plus a 12 V AC option, with five outputs usable at the same time, all from a single road-worthy enclosure.
Why guitarists choose this power supply
- Six isolated outputs, five usable at the same time — every pedal gets its own regulated feed with no shared-ground crosstalk hum.
- Multi-voltage — 9 V DC, 12 V DC, 18 V DC and 12 V AC from one brick to handle every pedal on your board.
- Switchable 115 V / 230 V AC input — supports North American and European mains without a step-down transformer.
- Short-circuit protection per output — a fault on one pedal will not take down the rest of your board.
- Traditional EI transformer inside — analog power design engineered for low noise on high-gain and vintage-style pedals.
Output configuration
- Outputs 1–3 supply 9 V DC or 12 V DC at 300 mA each — sized for the vast majority of stompboxes (fuzz, overdrive, EQ, tuner, small delays).
- Output 4 supplies 9 V DC or 12 V DC at 300 mA, or switches to 18 V DC at 150 mA for pedals with a headroom mode.
- Outputs 5 and 6 are alternatives — either 9 V DC / 12 V DC on output 5 or 12 V AC on output 6, one at a time, not both.
- Five outputs run at once at 300 mA each, for 1500 mA in total, and a current-doubler cable can combine two outputs for up to 600 mA.
- All outlets are centre-negative — standard Boss polarity.
Compatibility
- Powers a mixed pedalboard of up to five pedals at once, with plenty of headroom for digital-plus-analog rigs.
- Isolated design eliminates the ground-loop hum that plagues daisy-chain adapters.
- 18 V-compatible — great for pedals with headroom modes (many boosts, overdrives, and preamps).
- 12 V AC output — useful for a small but important class of pedals (older Line 6 modelers, certain DigiTech Whammy units, some vintage-style delays).
- Includes power cables and a mains cord.
Technical specifications
| Model | T-Rex Fuel Tank Chameleon |
| Type | Isolated multi-voltage pedalboard power supply |
| Number of outputs | 6 isolated outputs (5 usable simultaneously) |
| 9 V / 12 V DC outlets | 300 mA each |
| Simultaneous output | 5 × 300 mA |
| 18 V DC (outlet 4) | 150 mA |
| AC output | 12 V AC on output 6 (alternative to output 5) |
| Total output capacity | ~1500 mA total |
| AC input | Switchable 115 V or 230 V AC, 50/60 Hz |
| Connector polarity | Centre-negative 2.1 mm (Boss-style); all outlets |
| Isolation | All outputs individually transformer-isolated |
| Protection | Short-circuit and overload protection per output |
| Enclosure dimensions | 16.0 × 8.0 × 3.8 cm |
| Weight | 790 g |
| MPN / SKU | 811059013343 |
| GTIN (UPC/EAN) | 811059013343 |
| ASIN | B003Y3ASW0 |
| Country of manufacture | Denmark |
FAQ
How much current does each output supply?
Every 9 V DC / 12 V DC outlet supplies 300 mA, with five outputs running at once for 1500 mA in total. For a pedal that needs more, a current-doubler cable combines two outputs for up to 600 mA.
Which pedals need the 12 V AC output?
A small group of pedals — older Line 6 modeling stomps, certain DigiTech Whammy models, and some vintage-style effects — require AC rather than DC. Output 6 supplies 12 V AC as an alternative to output 5. Check your pedal's manual before switching that output on.
Is it truly isolated?
Yes — every output is transformer-isolated, so a noisy pedal will not inject hum into your other pedals via shared ground.
Will it work internationally?
The mains input switches between 115 V and 230 V, covering North America, Europe, Australia, and most of Asia. Set the voltage switch before plugging in.
Can I use it with 18 V pedals?
Yes — outlet 4 switches to 18 V DC at 150 mA for pedals with headroom modes.
Warranty?
2-year manufacturer warranty.




