About This Item
Description
A six-output, multi-voltage isolated power supply built for real pedalboards — the Fuel Tank Chameleon delivers 9V DC, 12V DC and 18V DC plus a 12V 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 feed with no shared-ground hum.
- Multi-voltage — 9V DC, 12V DC, 18V DC and 12V AC from one brick to handle a mixed pedalboard.
- Switchable 115V / 230V AC input — supports North American and European mains without a step-down transformer.
- Galvanically isolated outputs — a fault on one circuit will not pull down the others.
- Traditional EI transformer inside (not switch-mode) — designed for low noise on high-gain and vintage-style pedals.
Output configuration
- Outputs 1–3 supply 9V DC or 12V DC at 300 mA each — sized for most stompboxes (fuzz, overdrive, EQ, tuner, small delays).
- Output 4 switches to 18V DC, where it delivers 150 mA, for pedals that run at 18V.
- Outputs 5 and 6 are alternatives — 9V/12V DC or 12V AC, one at a time, not both; the choice is made with a small DIP switch.
- Five outputs run at once at 300 mA each, for 1500 mA in total. Each outlet has its own limit (current is not shared between outputs), and a current-doubler cable (sold separately) can combine two identical outputs for up to 600 mA.
- All outlets are center-negative — standard Boss polarity.
Compatibility
- Powers a mixed pedalboard of up to five pedals at once, analog and digital.
- Isolated design eliminates the ground-loop hum common with daisy-chain adapters.
- 18V output for pedals with an 18V headroom option (many boosts, overdrives and preamps).
- 12V AC output for pedals that specifically call for 12V AC — check your pedal's power requirements before selecting AC.
- Included polarity inverter and mini-jack cables cover center-positive pedals and pedals with 3.5 mm power jacks.
- For the lowest noise, mount the supply as far from your pedals as practical, ideally at the end of the board.
In the Box
- Fuel Tank Chameleon power supply
- Region-specific mains power cable (detachable IEC)
- 1 × red AC cable, 2.1 mm to 2.5 mm, for the 12V AC outlet
- 1 × orange polarity inverter cable, 2.1 mm plug to 2.1 mm socket
- 1 × black DC cable, 2.1 mm to 3.5 mm mini-jack
- 8 × black 2.1 mm DC cables: 2 × 20 cm, 4 × 50 cm, 1 × 75 cm, 1 × 100 cm
| Model | T-Rex Fuel Tank Chameleon |
|---|---|
| Type | Isolated multi-voltage pedalboard power supply |
| Number of outputs | 6 isolated outputs (5 usable simultaneously) |
| Outputs 1–3 | 9V or 12V DC, 300 mA each |
| Output 4 | switchable to 18V DC, 150 mA |
| Output 5 / 6 | 9V/12V DC or 12V AC (one at a time) |
| Total output capacity | 1500 mA (5 × 300 mA) |
| Current doubling | up to 600 mA with a doubler cable (not included) |
| Connector polarity | Center-negative, all outlets |
| Isolation | Galvanically isolated outputs, EI transformer |
| Mains input | Switchable 115V / 230V, detachable IEC cable |
| Power consumption | max. 40 W |
| Fuse | T315mA/250V |
| Dimensions (W × D × H) | 6.3 × 3.2 × 1.5 in (160 × 80 × 38 mm) |
| Weight | 27.9 oz (790 g) |
FAQ
How much current does each output supply? Every 9V DC / 12V DC outlet supplies 300 mA, with five outputs running at once for 1500 mA in total. Current is not shared, so an unused outlet does not add capacity to another; for a pedal that needs more, a current-doubler cable combines two outputs for up to 600 mA.
How does the 12V AC output work? Output 5/6 can be set to 12V AC as an alternative to 9V/12V DC. Use the included red AC cable, and only connect pedals that specifically require 12V AC.
Is it truly isolated? Yes — the outputs are galvanically isolated from a traditional EI transformer, so a noisy pedal will not inject hum into your other pedals via a shared ground.
Will it work internationally? The mains input switches between 115V and 230V, and the mains cable is a standard detachable IEC lead. Set the voltage switch before plugging in.
Can I use it with 18V pedals? Yes — outlet 4 switches to 18V DC at 150 mA.
Can I power a center-positive pedal? Yes — use the included orange polarity inverter cable.
Warranty? 2-year manufacturer warranty.