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Boost Pedals

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

Pre-Amp

This germanium Pre-Amp boost is a reproduction of a rare 1950's Hofner Preamp unit.  It was designed to be used in the auxiliary input of the typical 1950's home's stereo hifi console or tape recorder (all which would be vacuum tube based) and allow a guitar to be plugged in and amplified. Effectively making your home radio into a guitar amplifier.  The only modifications to the circuit are a volume control and to remove the shock protection capacitor.  That capacitor was in place to eliminate the possibility of being shocked by a "hot chassis" radio.  In pedal form it is not needed, so we bypassed that section.  the Volume control allows you to dial in the amount of boost this circuit provides.

 

As a pedal this circuit is a fantastic clean or dirty boost.  Into a clean amp and lower volumes, it is a germanium loud button!  It just takes your signal and makes it quite a bit louder and sweeter.  Into a dirty amp, it pushes the signal into further overdrive.  With the volume control ay max into a dirty amp, it sounds like a vintage tweed amp on the verge of imploding into itself. 

Each Pre-Amp features

Point-to-point thru-hole construction

Vintage 1960's Philips AC107 transistor 

Vintage CTS, Stackpole, Clarostat potentiometer

NOS Philips electrolytic capacitors

1960's Wima TFF capacitor 

NOS Allen-Bradley carbon comp resistors 

Housed in a hammertone  gray 125b enclosure with Fairchild reproduction knob and dial plate 

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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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

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

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