Fuel Tank Junior

Clean, Isolated Power in a Compact Footprint

Five isolated 9V outputs. Quiet operation. Built for straightforward pedalboards.

The T-Rex FuelTank Junior delivers clean, isolated power for up to five 9V effects pedals in a compact, rugged enclosure.

Designed for players who want to eliminate daisy-chain noise without adding unnecessary size or complexity, FuelTank Junior is an ideal match for traditional analog pedals, compact boards, fly rigs, and grab-and-go setups.

Five Truly Isolated Outputs

Each of the FuelTank Junior’s five 9V DC outputs is electrically isolated from the others.

That separation helps reduce ground-loop hum and unwanted interaction between pedals, giving your board cleaner and more dependable power than a conventional shared daisy chain.

Each output provides:

9V DC / 120mA

That makes Junior particularly well suited to conventional analog effects and many lower-current digital pedals.

Built for Small Pedalboards

FuelTank Junior is an excellent choice for boards built around pedals such as:

• Overdrive
• Distortion
• Fuzz
• Compressor
• Tuner
• Wah
• Boost
• Chorus
• Phaser
• Tremolo
• Other compatible 9V effects

Its compact footprint keeps valuable pedalboard space available for the effects themselves.

Quiet by Design

Daisy-chain power can allow pedals to interact through a shared ground connection.

FuelTank Junior avoids that architecture by giving each output its own isolated supply, helping reduce unwanted hum and noise in more sensitive rigs.

Simple. Quiet. Dependable.

Ready for the Road

FuelTank Junior features a rugged metal enclosure and a standard mains power connection, so there is no external wall adapter hanging from your pedalboard.

Switchable 115V / 230V operation also makes it suitable for musicians traveling between different mains-voltage regions.

Features

• Five individually isolated 9V DC outputs
• 120mA available per output
• Clean, isolated pedal power
• Compact metal enclosure
• Switchable 115V / 230V mains operation
• Standard mains power connection
• Five pedal power cables included
• Designed for compact and traditional pedalboards

Specifications

• Outputs: 5 × isolated 9V DC
• Current: 120mA per output
• Input voltage: switchable 115V / 230V
• Dimensions: 4.1 × 3 × 1.4 in
• Metric dimensions: 105 × 78 × 35 mm
• Packaged weight: approximately 18.5 oz / 0.47 kg
• Included cables: five 50cm DC cables plus mains power cable

Understand Your Pedalboard Power Budget

Choosing the right pedalboard power supply is about more than total current.

Before connecting any pedal, you need to match:

Voltage
AC or DC
Polarity
Available current

Understanding those four requirements makes it much easier to build a reliable pedalboard and avoid powering mistakes.

Learn how to calculate your Pedalboard Power Budget →

Small Board. Serious Power.

FuelTank Junior takes the essential idea behind the FuelTank family and pares it down to exactly what many players need:

Five pedals. Five isolated outputs. One compact power supply.

For a traditional 9V pedalboard, that simplicity is the point.