Treble Boosters

Two Knob info sheet
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Two Knob Treble Booster
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Two Knob Treble Booster
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Two Knob Treble Booster
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Two Knob Treble Booster
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Two Knob Treble Booster
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Two Knob Treble Booster
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Two Knob Treble Booster
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Two Knob Treble Booster
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Two Knob Treble Booster

Each 2 Knob Treble Booster features:

Dallas Rangemaster circuit modified with a 6 position tone switch 

AC107 or OC44 (when available)  germanium transistors

Vintage CTS, Centralab, Piher or Stackpole potentiometer

Philips or Sprague electrolytic capacitors

6 position rotary input capacitor switch with paper in oil or mylar audio grade capacitors

1960's Sprague Black Beauty or Bumblebee (when available) output capacitors

Allen-Bradley 1/2w, 1w & 2w carbon comp resistors

True Bypass switch

Handwired on phenolic terminal strip

Daka-Ware control knobs

Hammond 125b enclosure in hammered finish

Treble Booster Professional

The Treble Booster Professional features my favorite modifications to the Rangemaster circuit.  These include larger output cap value for wider frequency range & increased potentiometer value matched with higher gain transistor for "hotter" voicing. 

 

Each Treble Booster Pro features:

Modified Dallas Rangemaster circuit modified with a 6 position tone switch 

Mullard OC45 germanium transistor or Mullard OC202 silicon transistor

Vintage CTS, Centralab, Piher or Stackpole potentiometer

Philips or Sprague electrolytic capacitors

6 position rotary input capacitor switch with paper in oil or mylar audio grade capacitors

NOS West-Cap, Astron or other PIO  output capacitor

Piher & Allen-Bradley 1/2w, 1w & 2w carbon comp resistors

True Bypass switch

LED on/off indicator

Handwired on phenolic terminal strip

Daka-Ware control knobs

Hammond 125b enclosure in hammered finish

Amptop Treble Booster

Amptop Treble Booster
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Amptop Treble Booster
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Amptop Treble Booster
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Amptop Treble Booster
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Amptop Treble Booster
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Amptop Treble Booster
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Each Amptop Treble Booster features:

AC107 or OC44 (when available)  germanium transistors

Vintage CTS, Centralab or Stackpole potentiometer

Philips or Sprague electrolytic capacitors

6 position rotary input capacitor switch with paper in oil or mylar audio grade capacitors

1960's Sprague Black Beauty or Bumblebee (when available) output capacitors

Allen-Bradley 1/2w, 1w & 2w carbon comp resistors

True Bypass switch

Handwired on phenolic terminal strip

Daka-Ware control knobs

One Knob Treble Booster

One Knob Treble Booster
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One Knob Treble Booster
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One Knob Treble Booster
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One Knob Treble Booster
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One Knob Treble Booster
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One Knob Treble Booster
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One Knob Treble Booster
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One Knob Treble Booster
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One Knob Treble Booster
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Each One Knob Treble Booster features:

True to original Dallas Rangemaster circuit

AC107 germanium transistors

Vintage CTS, Centralab, Piher or Stackpole potentiometer

Philips or Sprague electrolytic capacitors

1960's Sprague Black Beauty or Bumblebee (when available) input capacitor

1960's Sprague Black Beauty or Bumblebee (when available) output capacitor

Allen-Bradley 1/2w, 1w & 2w carbon comp resistors

True Bypass switch

Handwired on phenolic terminal strip

Daka-Ware control knobs

Hammond 125b enclosure in Blue, Chrome or Raw Aluminum

**No Longer Available**

Replica Series R2RGeMaster

Limited run of 49 total units - *SOLD OUT*

The R2R Replica Series are a part for part build of an original Dallas Rangemaster.  Each component is an identical to what was used to build the Rangemaster in the 1960's.  These Replica units are as close to an original as possible.  

 

Each Replica features - 

1960's UK made Mullard OC44 black glass germanium transistor 

   **1960's UK Mullard OC71 transistor also available by request**

1960's Egen or Welwyn "Pre-Set" bakelite wirewound or carbon potentiometer

1960's Plessey, Hunts or other UK made 50uf capacitors

1960's Hunts, Erie or Aerovox mouldseal input and output capacitors

1960's Erie type 108 & type 109 carbon ceramic resistors

1960's Philips (Holland) solid core wire 

Handwired on phenolic terminal strip
 

R2RGeMaster

R2RGeMaster Instruction Sheet
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R2RGeMaster Stompbox
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R2RGeMaster Stompbox
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R2RGeMaster Stompbox
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R2RGeMaster Stompbox
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R2RGeMaster Stompbox
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R2RGeMaster Stompbox
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R2RGeMaster Stompbox
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R2RGeMaster Stompbox
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Each R2RGeMaster features:

Dallas Rangemaster circuit modified with "Range" control 

AC107 or OC44 (when available)  germanium transistors

Vintage CTS, Centralab, Piher or Stackpole potentiometers

Philips or Sprague electrolytic capacitors

1960's Sprague Black Beauty or Bumblebee (when available) input capacitors

1960's Sprague Black Beauty or Bumblebee (when available) output capacitors

Allen-Bradley 1/2w, 1w & 2w carbon comp resistors

True Bypass switch

Handwired on phenolic terminal strip

Vintage Daka-Ware control knobs

Hammond 125b enclosure in Matte Black finish

Additional Info

*Due to the design of this vintage Treble Booster  circuit, these pedals work best placed first in your signal chain.  These units do not work well with buffers or buffered bypass pedals going into the input of the booster.  This will cause the boost to sound thin with a significant volume drop*

 

**These effects can be powered by 9v battery (included) or with a standard Boss/One Spot style negative center 9v power supply**

 

***Please note that these pedals will not work in a power daisy chain with other pedals that use a negative center power supply.  It will need its own isolated power source, either it’s own separate power adapter or it works well with a Voodoo Labs or similar power brick***

If you have any questions or need assistance, please contact: info@r2relectric.com