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Treble booster

A treble booster is an effects pedal designed for electric guitars that amplifies high-frequency signals, providing a clean boost of up to 24 focused on and upper-midrange tones to enhance clarity, cut through mixes, and drive amplifiers into natural without introducing its own . These pedals typically employ simple Class-A single-transistor circuits, often using vintage transistors, to subtly shape the guitar's and dynamics while preserving the instrument's natural tone. Originating in the mid-1960s in , treble boosters addressed the perceived "dark" or "muddy" sound of overdriven British tube like the and when paired with humbucking pickups, which emphasized low-end frequencies. The , introduced around 1965 by Musical Ltd., became the archetypal model, utilizing a OC44 to increase signal strength and add harmonic overtones for a brighter, more articulate response. Other early examples include the Vox/Jen Treble Booster and the Colorsound Power Boost, which similarly prioritized treble enhancement to push into creamy saturation at moderate volumes. Treble boosters are positioned early in the , ideally directly after the guitar, to optimize and maintain before other effects or the . This placement allows players to control levels dynamically using the guitar's knob, reducing treble loss that occurs when rolling back on the alone. Modern recreations, such as those from ThroBak or Catalinbread, faithfully replicate circuits while offering improved reliability, and the effect remains popular for its ability to add bite and sustain without muddiness. The pedal's influence spans rock and blues genres, with notable users including of , integral to his layered guitar tones; of for heavy riff definition; for raw blues expression; of ; of T. Rex; and of . These applications highlight the treble booster's role in shaping iconic sounds from the 1960s onward, making it a staple for guitarists seeking vintage-inspired drive and tonal sculpting.

Introduction

Definition and Purpose

A treble booster is a compact effects pedal or unit designed for electric guitars that selectively amplifies high-frequency signals, particularly in the upper , while attenuating lower frequencies to reduce response. This design creates a brighter, more focused output by emphasizing harmonics and providing a subtle character without introducing heavy . The effect is often achieved through simple circuitry that enhances the guitar's natural treble content, resulting in a piercing yet controlled tone suitable for lead playing. The primary purpose of a treble booster is to enhance tones by increasing the overall signal gain, which drives amplifiers into for added sustain and bite. It excels at cutting through dense band mixes by concentrating sonic energy in the upper mids, preventing muddiness that can occur with full-range boosts on distorted amps. Additionally, it provides extended note sustain without resorting to full pedals, making it ideal for and applications where clarity and projection are essential. Unlike general boost pedals, which provide flat or broad-spectrum gain increases often centered on midrange frequencies, a treble booster specifically targets treble and upper mids for a sharper, more articulate sound that avoids overwhelming low-end buildup. This distinction results in a brighter, more piercing tone that prioritizes cut over warmth. Typically, it is placed early in the signal chain, often as the first pedal before fuzz, overdrive, or directly into the amplifier, to push subsequent effects or the amp's front end into higher gain territories.

Historical Significance

The treble booster emerged in the mid-1960s as a response to the tonal challenges faced by British guitarists during the , where the darker, bass-heavy sound of amplifiers like the and often clashed with the brighter tones heard on imported American records. Invented to enhance high-frequency response and signal strength, particularly when paired with humbucking pickups, it addressed the need for greater clarity and cut-through in increasingly loud setups. Treble boosters reached their peak popularity during the 1960s and 1970s, becoming staples in rock, blues, and emerging hard rock genres amid demands for amplified stage volumes and innovative tonal experimentation. This era saw widespread adoption by prominent guitarists seeking to push amplifiers into natural overdrive while maintaining treble sparkle, contributing to the raw, aggressive sounds that defined the period's music. By the 1980s, hotter pickups and high-gain preamps had made the need for dedicated treble boosters less pressing. However, interest revived in the among vintage tone enthusiasts, fueled by boutique reissues that replicated the original germanium transistor warmth and responsiveness. As one of the earliest specialized guitar effects pedals, the treble booster played a pivotal role in the evolution of stompbox design, laying groundwork for subsequent clean boosts, overdrives, and the broader pedal ecosystem by demonstrating the potential of simple, targeted signal modification.

Technical Design

Circuit Fundamentals

Treble boosters operate on the core principle of frequency-selective amplification, employing passive or active high-pass filtering to emphasize higher audio frequencies while attenuating lower ones. This is achieved through a combination of capacitors and resistors that form a high-pass filter, typically rolling off bass frequencies below approximately 200-500 Hz to reduce muddiness in the signal path, and providing gain to frequencies above 500 Hz for enhanced clarity and bite in guitar tones. The filtering ensures that the boosted signal focuses on treble and upper-midrange content, making it particularly effective for cutting through dense mixes without overwhelming low-end response. The basic circuit topology of a treble booster centers around a single-transistor amplifier stage, most commonly configured in a common-emitter arrangement, which provides voltage gain while incorporating capacitors for coupling and frequency shaping. Input and output coupling capacitors block components and contribute to the high-pass response, with the input capacitor in series with the signal path creating the initial roll-off based on its value and the circuit's . This simple design minimizes components, allowing the —often a bipolar junction type like or —to amplify the filtered signal efficiently. Gain in treble boosters is generated by the stage, delivering typically around 25-38 of boost, which can drive downstream amplifiers into natural and saturation for added richness. The is typically fixed or minimally adjustable, with the high-pass filtering ensuring the disproportionately affects frequencies, resulting in a perceived sparkle without excessive volume increase across the full spectrum. This mechanism not only elevates the signal level but also introduces subtle clipping characteristics inherent to the 's operation. Power requirements for treble boosters are straightforward, usually powered by a 9V battery or external supply, with the drawing low to support portable use in live settings. Vintage germanium designs often use positive configuration. Modern iterations often incorporate true switching to maintain when the effect is disengaged, preventing any loading or tone loss from the 's components.

Components and Variations

Treble boosters primarily rely on transistors as their core amplifying elements, with types such as the OC44 offering a warm, characterized by soft clipping and , though they can introduce noise. In contrast, transistors provide cleaner operation, higher , and greater stability in modern reissues, making them suitable for low-noise amplification without the vintage warmth of germanium. Filtering elements shape the to emphasize frequencies, typically using capacitors such as 5nF input types that form a with a around 400-500 Hz, allowing higher frequencies to pass while attenuating . s, including emitter resistors like 3.9kΩ for , further refine the tonal balance and prevent signal pops. Optional modifications include adding a 1MΩ-10MΩ input pull-down resistor to for and to prevent switching pops. Additional capacitors, such as 10nF output types, block while maintaining low-frequency outside the audio range. Variations include passive designs, which operate without power and deliver lower gain through simple high-pass filtering to preserve natural tone, as seen in units providing around 16dB of boost via impedance matching rather than amplification. Active configurations, powered by batteries or adapters, enable greater boost levels and dynamic response through transistor amplification. Modern units often incorporate buffer stages, such as JFET circuits, to maintain signal integrity when placed after other effects pedals and prevent loading issues in complex signal chains. Common modifications enhance versatility, including adjustable potentiometers that replace fixed resistors (e.g., 68kΩ to 100kΩ) for fine-tuning amplification levels and optimizing operation. Switches for input selection (e.g., between 5nF and 47nF) allow users to alter the cutoff frequency, while some variants feature toggles for blending with emphasis to adapt the response across different guitars and amplifiers.

Historical Models

Early 1960s Innovations

The treble booster emerged in the mid- as a response to the tonal challenges faced by guitarists during the beat group era, when bands sought brighter, more cutting sounds to drive underpowered tube amplifiers in large venues. engineers at companies like Dallas Musical Ltd. in developed these devices to counteract the dark, muddy overdrive produced by amps such as the and , particularly when paired with humbucking pickups, allowing musicians to achieve enhanced high-end clarity and signal strength without relying solely on amplifier modifications. The first major commercial treble booster was the Dallas Rangemaster, introduced in 1965 by Dallas Musical Ltd., a firm incorporated in 1959 that specialized in guitars and amplifiers. This compact unit featured a single OC44 germanium transistor, providing approximately 24 dB of treble-focused gain while rolling off bass frequencies via a , which helped push amps into natural for a gritty yet articulate tone. Marketed directly through music shops like Selmer, it targeted professional musicians in the burgeoning rock scene, where underpowered setups struggled to cut through mixes at high-volume performances. In parallel, Hornby Skewes & Company released a budget-friendly treble booster in the mid-, offering a similar single- design as an accessible alternative to pricier options like the Rangemaster. This unit, also employing a , emphasized upper-midrange bite and was distributed through music retailers to appeal to working guitarists seeking affordable ways to brighten their rigs amid the era's limitations. Both innovations reflected the DIY of London's 1960s music shops, where effects were often custom-built or imported to meet the demands of the beat group explosion.

1970s Developments and Clones

In the early 1970s, expanded its effects lineup with the V8401 /Bass Booster, a compact module designed to plug directly into a guitar's input jack, providing selectable or boosts via a rotary control. Produced from 1969 to 1973 by JEN in as a more durable alternative to earlier UK-made versions, this unit featured a robust enclosure well-suited for touring musicians, reflecting Vox Sound Limited's shift toward practical, road-ready gear during the era. A notable trend in the involved the proliferation of unofficial clones and variants that integrated boost elements into fuzz circuits, exemplified by Sola Sound's MKIII. Introduced in 1968 but manufactured through the mid-, the MKIII often included dedicated and bass boost controls alongside fuzz, with early germanium transistor models giving way to silicon variants by the late due to sourcing challenges. These designs were cloned and rebranded by companies like Rotosound, , and Colorsound, adapting the core -enhancing circuitry for broader integration into pedals and appealing to rock guitarists seeking enhanced cut-through in band mixes. Treble boosters reached peak production and adoption by the mid-1970s, with manufacturers facing variations in component sourcing amid the increasing scarcity and cost of transistors, which were being phased out in favor of more reliable alternatives. This era saw widespread use among and players for brightening tones, but by the late 1970s, demand for pure treble boosters began to decline as versatile overdrive pedals—such as the and Boss OD series—emerged, offering combined boost, clipping, and compression in a single unit that better suited evolving and metal styles.

Notable Examples and Usage

Dallas Rangemaster

The , launched around 1966 by the London-based firm John E. Dallas & Sons Ltd. (later associated with Arbiter), marked a pivotal innovation in guitar effects as one of the earliest dedicated treble boosters designed specifically for British musicians. Intended to counteract the darker tonal characteristics of tube amplifiers like the and , it amplified high frequencies and overall signal strength, enabling guitarists to achieve greater sustain and bite without additional circuitry. Its amp-top placement—rather than floorboard use—reflected the era's practical needs for compact, unobtrusive signal enhancement during live performances. At its core, the Rangemaster employed a minimalist single-stage built around one , most commonly the OC44, though variants used the OC71 or Newmarket NTK275. This configuration delivered up to 38 dB of voltage gain, with emphasis on upper and frequencies via a high-pass input filter, resulting in a focused, sparkling boost that added soft and warmth without excessive coloration. The pedal lacked tone or gain knobs, featuring only an on/off slide switch and a 10 kΩ (occasionally 20 kΩ) for adjustable output level, powered by a standard 9V battery. Encased in a rugged, battleship-gray folded-metal box finished in Hammerite paint with simple screen-printed labeling, it measured compactly for secure amp-head mounting and was assembled point-to-point on a terminal strip using carbon-composition resistors and film capacitors for reliability. Manufacturing occurred in limited quantities through the late , ceasing around 1969, with original units never produced in large volumes and now considered scarce collectibles valued at several thousand pounds due to their . While standard models adhered closely to the gray enclosure and OC44 blueprint, subtle variations emerged from component substitutions driven by availability, such as alternative transistors, contributing to tonal differences among surviving examples. Renowned for its raw, transparent drive that excels at overdriving front ends into natural breakup, the Rangemaster established the treble booster genre and became a staple for pushing tube amps to their limits, yielding articulate, amp-like tones ideal for rhythm and lead work. Its enduring influence is evident in the proliferation of DIY schematics and commercial replicas from builders worldwide, cementing it as a benchmark for clean, frequency-specific boosting in rock and contexts. Notably, guitarist employed the Rangemaster to enhance his setups, contributing to his signature multi-layered harmonic sound.

Vox and Hornby Skewes Boosters

The Treble Booster, produced by Jennings Musical Industries (JMI) from 1964 to 1968, utilized a single to deliver enhanced and a brighter tone, distinguishing it from germanium-based designs by offering greater stability and clarity in the upper frequencies. Housed in a compact chrome-plated steel enclosure measuring approximately 4⅝" x 1¼" x ¾", the unit was powered by a 9V and featured a three-way slide switch enabling true signal , allowing seamless integration directly into the input jack of amplifiers like the AC30 for optimized performance in live and studio settings. Targeted at professional musicians and high-end users within the era, it retailed for £4 4s in 1965, positioning it as a premium accessory aligned with 's reputation for quality amplification. Notably used by artists like of . In contrast, the Hornby Skewes Treble Booster, introduced around 1965 as part of the company's Selectatone series, provided an economical treble-emphasis alternative inspired by early boosters like the Rangemaster, specifically designed to brighten tones and complement their budget-oriented Zonk Machine fuzz pedal for better mix penetration. Early iterations employed transistors for a warmer response, transitioning to types such as the 2N4061 by 1967 to achieve a more consistent and pronounced brightness, with the circuit incorporating a via a 1nF output and 100kΩ to attenuate bass frequencies effectively. Aimed at beginners and cost-sensitive players, it was priced around £4—comparable to entry-level effects of the time—and produced in limited quantities until 1968, when manufacturing halted amid the company's shift to instrument distribution following the death of designer Charlie Ramskirr.

Colorsound Power Boost and Modern Reissues

The Colorsound Power Boost, introduced in 1969 by the company Sola Sound and designed by Gary Hurst, represents a significant evolution in treble booster design as a hybrid pedal that integrates and EQ controls with variable gain for overall signal amplification. Unlike earlier pure treble boosters, it functions as a versatile pre-amplifier, providing a significant amount of clean boost while allowing users to shape tone through dedicated and knobs, alongside volume and sustain (gain) controls, enabling transitions from transparent lift to mild . The original 18V models, powered by PP3 batteries and housed in a distinctive orange pressed-metal enclosure similar to pedals, utilized silicon transistors such as BC109C and BC184L for a dynamic response characterized by high headroom, fat low-end retention, and glassy highs without excessive distortion. Notably used by of . Production of the 18V version continued until around 1972, after which it was repackaged as the 9V Overdriver with a similar circuit, but early Power Boost units remain particularly scarce due to limited manufacturing runs during Sola Sound's initial years. Modern reissues of the Colorsound Power Boost have revived its design since the early , often through Sola Sound's ongoing efforts via Macari's Musical Exchange in , where builder Stu Castledine produces faithful recreations of the 1972 18V model using original-spec PCBs, BC184L transistors, and reconditioned enclosures for historical accuracy. These limited-edition runs, such as the initial batch of 50 serially numbered units, emphasize the pedal's scooped midrange tone and massive volume potential while incorporating subtle updates like custom reverse-log potentiometers for smoother volume swells. manufacturers have also contributed, with ThroBak's Overdrive Boost offering a tonal equipped with TO-18 metal-can transistors, true bypass switching, and higher to better interface with contemporary guitars and effects chains. Similarly, the Aion FX Nucleus Vintage Boost replicates the two-band tonestack and transistor amplification stages, available in form for DIY enthusiasts seeking the original's warmth and clarity at accessible price points around $100 to $200. Key enhancements in these reissues include selectable 9V or 18V operation for varied headroom, LED indicators for status, and optional buffered outputs to preserve in complex pedalboards, addressing limitations of units like battery drain and impedance mismatches. While most adhere to transistors for the authentic glassy sustain, some variants provide alternatives to introduce subtle warmth akin to earlier booster designs, broadening appeal without altering the core hybrid functionality. Ongoing production by Sola Sound and independent builders ensures the Power Boost's legacy endures, with reissues maintaining availability since the 2000s revival amid growing demand for tones.

Cultural and Musical Impact

Adoption by Key Musicians

of popularized the during the band's formative years, incorporating it into his signal chain from the late 1960s through tours up to mid-1973 to achieve enhanced sustain and layered harmonic overtones in early recordings such as those on Queen (1973) and (1974). May continued using treble boosters, including variants, for later albums like (1974). The pedal's germanium design provided the bright, cutting edge that complemented May's homemade guitar and amplifiers, enabling his signature multi-tracked guitar orchestrations with prolonged note sustain. The tone on Eric Clapton's 1966 album (often called the "Beano" album), recorded during his tenure with John Mayall's Bluesbreakers, is famously replicated using a to drive his into a amplifier for raw, bluesy overdrive leads characterized by biting highs and dynamic response, though Clapton's exact equipment usage remains unconfirmed. This setup contributed to Clapton's "woman tone," a midrange-focused sound with rolled-off treble on the guitar that a treble booster would sharpen for expressive solos on tracks like "Hideaway." Tony Iommi of Black Sabbath integrated a modified treble booster—often a Rangemaster variant—into his rig with Laney amplifiers during the early 1970s, using it to add high-end cut-through and sustain to his down-tuned Gibson SG riffs on albums like Paranoid (1970) and Master of Reality (1971). The pedal's placement before the amp helped Iommi's heavy, doom-laden tones maintain clarity amid the band's dense low-end, as evidenced in iconic tracks such as "Iron Man," where it enhanced riff definition without excessive distortion. Ritchie Blackmore of employed treble boosters, including the Hornby Skewes model, throughout the late 1960s and 1970s to sharpen his Stratocaster's attack into stacks, facilitating the neoclassical phrasing and fluid bends in solos on albums like In Rock (1970). This technique added punchy highs and sustain to Blackmore's leads, as heard in "Highway Star," where the booster's boost enabled rapid scalar runs with articulate note separation. Rory Gallagher relied on a Dallas Rangemaster treble booster as a core element of his setup with amps from the late 1960s onward, crafting his raw, emotive blues tone through its high-frequency emphasis on pickups for gritty, unpolished leads on live performances and albums like (1974). The pedal's role in tightening Gallagher's sound while preserving dynamic touch is evident in extended improvisations, where it amplified stinging bends and harmonic bite without smoothing the organic edge of his blues-rock style. Marc Bolan of T. Rex used the Dallas Rangemaster treble booster to enhance the clarity and bite of his tones through Selmer and amplifiers, contributing to the sparkle on albums like (1971) and helping his riffs and solos cut through the band's dense mixes. of employed treble boosters, including Rangemaster-style units, to add high-end definition and sustain to his and setups with and amps, shaping the gritty, blues-rock tones on albums such as (1973) and beyond.

Role in Guitar Tones and Genres

Treble boosters play a pivotal role in shaping guitar tones by emphasizing high frequencies while attenuating , creating a sharp, piercing quality often described as "" highs that enable solos to cut through dense band mixes. This tonal characteristic provides clarity and sustain, particularly when driving amplifiers into , allowing guitarists to achieve focused leads without muddiness. In contexts, this boost enhances the aggression of fuzz pedals; for instance, placing a treble booster before an in setups tightens the low end and amplifies harmonic complexity, resulting in a more articulate, biting suitable for riff-heavy playing. In British of the , treble boosters were instrumental in defining the genre's crisp, overdriven sound, transforming the warmer response of amps like the into a brighter, more responsive tone that bridged phrasing with emerging rock energy. By the , they contributed to proto-metal's heavier aesthetics, where the added bite complemented down-tuned guitars and fuzz tones to produce a menacing yet defined edge in early heavy rock recordings. Their influence persists in modern revivals, where players use them to evoke vintage grit, pairing the boost with fuzz for sludgy yet articulate riffs that nod to origins while fitting contemporary doom-infused styles. Treble boosters are frequently combined with amplifiers to enhance the amp's natural chime, rolling off lows to accentuate the bell-like highs and midrange sparkle characteristic of British rock tones. In contemporary pedalboards, they serve as versatile tools for emulating vintage sounds, often integrated into signal chains for precise tone shaping without altering the core amplifier response. This enduring utility has inspired digital modeling, such as the Deranged Master effect in Line 6's processor, which simulates classic treble booster circuits to replicate their and dynamic behavior in software-based rigs.

References

  1. [1]
    Boost pedals: the history of the stompbox that supercharged the ...
    Jul 26, 2023 · The treble booster really started out as a British phenomenon. The records that UK rockers and blues players were listening to were mostly ...
  2. [2]
    Treble Booster, 3 reasons to use it - Colombo Audio Electronics
    Jun 10, 2020 · A treble booster is a simple circuit (often class-a single transistor) that works both on the dynamics and frequency of the guitar signal and obviously on the ...
  3. [3]
    Dallas Rangemaster History - British Pedal Company
    The Dallas Rangemaster Treble Booster born in the mid-1960s. Its function was two-fold: to increase the signal strength of the guitar going into the amplifier.<|control11|><|separator|>
  4. [4]
    Treble Booster - InSync - Sweetwater
    Jun 29, 2015 · A treble booster is a type of effects pedal made famous in the 1960s by guitarists such as Brian May, Tony Iommi, Marc Bolan, and others.
  5. [5]
    20 ways to get more from your pedals | Guitar World
    Jun 9, 2025 · The treble booster is possibly the most misleadingly named effect out there, as its real benefit lies in shelving off bass and boosting upper ...Missing: explained | Show results with:explained
  6. [6]
    Catalinbread Introduces the Naga Viper Treble Booster
    Aug 22, 2011 · The Naga Viper is Catalinbread's version of this famous circuit and it adds two controls, Range and Heat, to the original's single Boost control.Missing: effects | Show results with:effects
  7. [7]
    All About… Boosts - Guitar.com
    Mar 23, 2016 · Treble boosters lingered on because guitarists discovered they could be used to push the front ends of valve amps into cutting but creamy valve overdrive and ...Missing: definition | Show results with:definition
  8. [8]
    High-pass Filters | Filters | Electronics Textbook - All About Circuits
    A high-pass filter allows for easy passage of high-frequency signals from source to load, and difficult passage of low-frequency signals. Capacitive high-pass ...
  9. [9]
    Active High Pass Filter Circuit - Electronics Tutorials
    When used like this in audio applications the active high pass filter is sometimes called a “Treble Boost” filter. Second-order High Pass Active Filter. As ...
  10. [10]
    Dallas Rangemaster Treble Booster Circuit Analysis - ElectroSmash
    The Dallas Rangemaster is a guitar pedal that emphasizes upper mid and treble frequencies, using a simple single-stage Common Emitter PNP amplifier.Missing: fundamentals | Show results with:fundamentals
  11. [11]
    Bipolar Transistor Boosters - AMZ FX
    A single transistor gain stage is useful to provide a voltage boost to low level guitar signals, not only to make the sound louder but also to provide a ...
  12. [12]
    [PDF] More Than You Want to Know About Treble Boosters
    May 21, 2025 · This documentation provides an overview of treble booster design principles, common circuit topologies, typical component choices, and ...
  13. [13]
    Boost Pedals - BIGFOOT ENGINEERING
    The Bigfoot Trouble Booster Mini is a passive boost pedal which preserves your guitar's natural tone. ... This pedal is designed to add 16dB of heat to your ...
  14. [14]
    16 of the Best Compact Treble Booster Pedals - Guitar Pedal X
    May 27, 2019 · The very best Treble Boosters available at the compact enclosure format size - and it's very fitting that the selection includes both Signature Brian May and ...
  15. [15]
    Classic gear: Dallas Rangemaster - the secret sauce behind Rory ...
    Aug 9, 2019 · Introduced to the burgeoning guitar effects market of the mid-60s as a 'treble booster' by London's Dallas Musical Ltd, it was originally aimed ...
  16. [16]
    Vox V8401 Treble/Bass Booster -1969 - 1973 - The VOX Showroom
    The Vox V8401 was a module that plugged into a guitar to boost bass or treble frequencies, using a rotary control to adjust the boosted frequency.
  17. [17]
    Vox Tone Bender MKIII - Fuzzboxes
    Photos and a historical overview of the vintage Tone Bender MKIII fuzz box, that was built by Sola Sound from 1968 until well through the 1970s.Missing: variants | Show results with:variants
  18. [18]
    The Dallas Rangemaster - Vintage Guitar® magazine
    Legend has it he added a Dallas Rangemaster Treble Booster to his signal path on several tracks. With the amp controls dimed and the treble boosted, his sound ...
  19. [19]
    JMI Vox Treble, Bass, Distortion and Mic Plug In Boosters -1964 - 1968
    The #149 Treble Booster utilized a treble gain circuit powered by one silicon transistor and featured a three-way slide switch which offered true signal bypass.Missing: aluminum | Show results with:aluminum
  20. [20]
    Hornby Skewes Zonk Machines - Vintage Guitar® magazine
    The Zonk was a simple pedal housed in a folded-steel box with a basic footswitch and just two controls, labeled Fuzz and Swell.Missing: Unitas | Show results with:Unitas
  21. [21]
    Hornby Skewes Treble Booster - Guitar FX Layouts
    Feb 29, 2012 · The filter created by the 1n output cap and 100K resistor will cut a lot of bass (after all it is a treble booster), but consider socketing it ...<|separator|>
  22. [22]
    BSM HS-S Treble-Booster
    The HS-S Treble Booster has been designed for single coil or humbucking pickups with a relatively low/medium coil inductance, such as pickups in Fender or ...Missing: 1970 aluminum
  23. [23]
    The Creation of the Colorsound Power Booster - Tru-Fi Pedals
    The Colorsound Power Boost is a classic vintage guitar effects pedal known for its distinctive overdrive and boosting capabilities.Missing: 1972 Mullard OC75 transistors
  24. [24]
    Colorsound Power Boost - Gilmourish.com
    Its open and transparent tone is really the secret to be able to drive those old Hiwatts and Marshall heads for smooth, singing overdrive and distortion. The ...Missing: Mullard OC75
  25. [25]
    Colorsound Overdriver and Power Boost - Kit Rae
    The Power Boost/Overdriver is a very versatile pedal with a number of uses. It creates a very transparent pre-amp boost that sounds dynamic, warm, and open.Missing: OC75 | Show results with:OC75
  26. [26]
    18v Power Boost by stu castledine - Colorsound - Macaris
    Transistors are BC184L, as in my original. Production : first run , 50 ??? pieces to test the water , all serial numbered tested and signed by SC . Cheers ...<|control11|><|separator|>
  27. [27]
    Nucleus Vintage Boost / Colorsound Power Booster - Aion FX
    The Nucleus Vintage Boost is a clone of the Colorsound Power Booster, a transistor-based boost/drive pedal with 2-band tonestack that was first sold in 1970.Missing: Mullard OC75
  28. [28]
  29. [29]
    History of Brian May's treble boosters and pedalboard used with ...
    Brian May used the OC44 germanium transistor based Dallas 'Rangemaster' treble booster pedal from the late 1960s up to the Queen tours in mid/late 1973.Missing: definition | Show results with:definition
  30. [30]
    Treble Boosters - Latest Rock Music News Today
    He modified Brian's treble booster in the late 1970's to improve the reliability and reduce the noise. This booster can be heard in action on many Queen ...<|separator|>
  31. [31]
    Treble Boosters - dsgb
    The treble booster effect pedal has been a key component in Brian May's signal chain since the beginnings of Queen. His interest was inspired by the ...
  32. [32]
    BSM RM Early Days Treble-Booster
    Eric also used the booster when playing in the legendary group Cream. Its biting, powerful sound is clearly in evidence on the Bluesbreakers "Beano" album.
  33. [33]
    TREBLE BOOSTERS | Page 2 - The Tone Rooms
    Nov 30, 2019 · Eric Clapton christened it “woman tone.” On the famed 1966 “Beano” album, John Mayall's Blues Breakers With Eric Clapton, the guitarist ran ...
  34. [34]
    Tony Iommi on the modified treble booster his tech threw out
    Jun 30, 2025 · Tony Iommi's tech threw out the one-of-a-kind treble booster behind Black Sabbath's classic guitar tone.
  35. [35]
    Tony Iommi's Rangemaster Treble Booster (Black Sabbath)
    Jul 28, 2009 · The most known mod is to add the 1M resistors to eliminate pedal pop. I don't think there was much to modify on the early Rangemaster's.
  36. [36]
  37. [37]
    Ritchie Blackmore's Mk2 sound - BSM Treble Booster
    The DP_Mk2 sound of Ritchie Blackmore is dominated by the combination of a treblebooster and a 200 watt Marshall Major amp.
  38. [38]
    Mint Boxed Pigeon FX Hornby Skewes Treble Booster Ritchie ...
    Out of stockMint Boxed Pigeon FX Hornby Skewes Treble Booster Ritchie Blackmore Secret Weapon Deep Purple & Rainbow Tones. Used – Mint. Price$171.26. + $65.76 Shipping.<|separator|>
  39. [39]
    Ritchie Blackmore Zone | BSM - Finest Treble Booster
    BSM Tone Chart. For Ritchie's classic Deep Purple Mark 1 sounds 1968-1970, the BSM HS-C is the perfect pedal. For the typical early/mid 1970's Blackmore ...
  40. [40]
    Joe Bonamassa now owns Rory Gallagher's Number 1 Rangemaster
    Humbled and blessed.” For the uninitiated, the Rangemaster is a treble booster that, when paired with a Vox AC30 amp, became a crucial part of ...
  41. [41]
    Rory Gallagher | BSM - Finest Treble Booster
    For a rough & sizzling Gallagher-ish tone, starting with the BSM RM would be quite a good idea. Use it with any Strat-style guitar (w/single coils) in ...
  42. [42]
  43. [43]
  44. [44]
    Line 6 Line6 - Helix Models
    Helix amp and effects processors set the standard for ease of use when crafting authentic sounding and feeling guitar tones.