Built like a tank and designed to fit on most pedalboards, the Tonebone Trimode is tremendously powerful. It is in fact a hybrid that combines the control of a dual-stage solid-state front end with the warmth and natural even harmonics generated by a 12AX7 tube. The tube is mounted on its side to lower the pedal profile for easy foot pedal action. This is powered by a high output 15 volt - 400 milliamp supply to deliver more than twice the power of a typical 9V PSU. Power is internally regulated and filtered to eliminate noise.

To deliver maximum tone, full-size discrete parts are employed throughout. These are hand inserted and then soldered to a double-sided circuit board with a full-surface ground plane making the Tonebone Trimode the quietest pedal in its class. High lifecycle footswitches combine with steel shafted potentiometers for maximum durability. The outer case is made from heavy duty 14 gauge steel to eliminate stress on the circuit board to prevent premature part failure. The Trimode is then finished in a durable baked enamel finish.

The Trimode is made with pride in Canada.

Trimode Block Diagram

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Specifications are subject to change without notice.
Circuit Type: Hybrid tube / proprietary circuit
Tube Type: Standard 12AX7 vacuum tube
Input Impedance: 1meg Ohm at input jack
Output Impendence: 10K Ohm
Drive Gain:
Used in conjunction with the drive gain control. Drive switch selects the gain range of the overdrive circuit.


Normal mode (+0dB Nominal)
Medium distortion (+9dB)
High distortion (+20dB)
Interstage Drive: Fine tune adjustment for CHANNEL-1 counter-clockwise for more gain
Drive 1 & 2: Used in conjunction with the drive gain switch, used to adjust the overall amount of gain to the overdrive circuit.
Mid Boost 1 & 2
Three position switch for each channel to accentuate lead tone and sustain.


CHANNEL-1 (rhythm)
+8dB @ 390Hz
+4dB @ 390Hz
No boost
CHANNEL-2 (lead)
+12dB @ 390Hz
+7dB @ 390Hz
No Boost
Filter: Allows you to reduce the high frequency content and compensate for overly bright amplifiers.
Top End:
Three position switch sets the overall tonal character to best match the amp and guitar. Brighter amps are normally compensated with darker settings.


+6dB @ 10kHz
No boost or cut
-6dB @ 1.8kHz
High & Low EQ:


+/- 14.5dB @ 100Hz
+/- 10dB @ 4.3kHz


True bypass with silent photocell switching.
Selects between channels 1 & 2.
LED indicators: Large 3mm OD ultra-bright LEDs
Construction 14 gauge steel, baked enamel finish
Size 8.12 x 4.25 x 2.12" (207 x 108 x 54mm)
2.55lb (1.16kg)
Power Supply:
15VDC 400mA, center pole positive

Part # R800 9407 00 - 120 volt
Part # R800 9407 01 - 230 volt
 Part # R800 9407 02 - 230 volt
Part # R800 9407 03 - 100 volt
Part # R800 9407 04 - 240 volt

USA, Canada, Taiwan
Continental Europe
United Kingdom