This is a detailed compact replica of one of the world’s most iconic effects. The Dallas Rangemaster treble booster, originally produced in 1965 has been used by many of the worlds most respected artists including Eric Clapton, Tony Iommi, Rory Gallagher, Brian May, Marc Bolan, Richie Blackmore, and many more… although classed as a Treble Booster the Rangemaster was used as an overdrive pedal to give a more distorted but focused tone with many classic British amplifiers that included the legendary Marshall Bluesbreaker and Vox AC30.

  • Small Compact Pedal Casing
  • New Gain Selected OC44 Transistor
  • Modern potentiometer
  • Original 1965 Circuit Design
  • Certificate of Authenticity
  • Can be used with Negative 9V Supply

*** Please note All Compact Series Pedals require their own isolated 9V power supply. This is due to the nature of the PNP Transistors which cannot be used with a daisy-chained supply.


Effect Type: Treble Booster
Transistors: 1x OC44
Controls: Set
Casing: Diecast Case
Colour: Silver Hammerite
9V PSU Compatible: Yes
Accessories: Stickers, Badges, Certificate of Authenticity

Many people ask us how each transistor differs in tone. Everyone’s ears are different but here is our small guide

OC75: Bright and high gain, snappy in tone, sounds raspy in a 3 transistor circuit such as the MKI.5
OC81D: Smooth gain lots of saturation
2G381: This is what gives the MKI its sag when you bend a note. They are key to the MKIs Tone.
OC44: Bright and Driven Tone
OC71: More Shrill and Glassy then an OC44
ACY41: Bright, Raspy, and in your face (ideal for fuzz)
2n4061: Silicon-based, used in the Shatterbox for crazy amounts of thick fuzz

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
  • British Pedal Co.
  • Compact Series Rangemaster Authentic Treble Booster Guitar Pedal
  • 2022
Made In
  • United Kingdom

Truetone Music

Santa Monica, CA, United States
Joined Reverb:2015

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