
CONGRATULATIONS
on your purchase of ToneBug Overdrive, part of a brand new series
of great-sounding, pared-down pedals from T-Rex Engineering.
ToneBug Overdrive puts the blues in your shoes – or under them,
when you kick this sweet stomp box into gear. It gives you just the
controls you need to dene your very own classic overdrive sound.
And it delivers loads of incredible warm tone that you’ll nd in a
T-Rex pedal.
Using your ToneBug Overdrive is easy and intuitive. Just turn the
page to get started.

READY, SET, GO!
Using your ToneBug Overdrive
Insert a 9 Volt alkaline battery or connect the pedal to one of the
T-Rex FuelTank power supplies (not included).
This pedal accepts both 9 and 12 Volt DC (see technical specs).
Plug your guitar into the INPUT jack, and run a lead from the OUTPUT jack into your amp.
Adjust the GAIN, TONE and LEVEL settings until you’ve found the
sound you’re looking for. And that’s it!
Note: GAIN adjusts the amount of overdrive, or degree of “dirt”.
TONE determines the “brightness” of your gain. LEVEL adjusts the
overall output level sent to your amplier.
TECHNICAL SPECIFICATIONS:
Input Impedance @ 1KHz Higher than 1 M Ohm
Output Impedance @ 1KHz Lower than 1 K Ohm
Power supply 9V DC
Minimum Power supply Voltage 8V DC
Maximum Power supply Voltage 12,5V DC
Current Draw @ 9V DC 7 mA
Maximum input signal Vp/p 3,2 Vp/p
Battery Type 9V battery 6F22 Alkaline
Battery Life 12 to 16 Hours
External connectors Input Jack. Output Jack, 9V DC Jack (center
pin negative)
Controls On/O, Level, Gain, Tone
Depth 120 mm
Width 78 mm
Height 60 mm
Weight (excl. battery) 0,403 Kg

SAMPLE SETTINGS:
Tube Warmth
GAIN: 1 o’clock
TONE: 11 o’clock
LEVEL: 9 o’clock
Muddy Blues
GAIN: 3 o’clock
TONE: 9 o’clock
LEVEL: 8 o’clock
Hot Edge
GAIN: 5 o’clock
TONE: 4 o’clock
LEVEL: 8 o’clock
T-REX WARRANTY CONDITIONS
T-Rex offers a 2-year warranty on all our products. In the unlikely event of a malfunction,
please contact our technical suppor t at info@t-rex-effects.com before sending us the product
for repair. When the product has been sent to us at sender’s cost, we will repair or replace
your product and send it back to you - free of charge and usually within 3 weeks (shipping
not included). The product needs to be accompanied by a copy of your receipt, serial number, return address, phone number, e-mail address and a brief explanation of the problem.
Please note that we cannot replace a product until we have received it here in Denmark.
The warranty is lost if the product has been damaged by alteration, misuse, accident, or
neglect; or if the product has been repaired or serviced by persons not authorized by T-Rex.
Read more about warranty conditions at www.t-rex-effects.com.
ABOUT T-REX
Based in Vejle, Denmark, T-Rex Engineering makes classic and signature effects pedals for the
world’s best musicians. Our approach blends hi-tech innovation with old-world craftsmanship – always in the service of killer tone.
EU REGULATIONS • ENVIRONMENT PROTECTION
T-Rex accepts and follows the regulations and directives issued by the EU. We find these
environment protecting regulations very good, and we are happy to follow them.