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Hartman Electronics Vintage Germanium Boost Guitar Effects Pedal   (Used)

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Hartman Electronics

A modern recreation of the classic Rangemaster treble booster featuring new old-stock parts.

The Hartman Vintage Germanium Boost is a very musical and faithful recreation of the original Rangemaster treble booster using N.O.S. (new old-stock) PNP Germanium transistors, each carefully screened for leakage and gain, and auditioned for tonal characteristics. The pedal functions as clean treble booster on lower settings, ideal for dark sounding amps. More boost is applied to the treble region than to the bass: the higher the note played, the more gain (approx. 24 dB at the upper end of the neck and dial). Higher settings introduce grit and grind. Selectable frequency response allows users with bright amps to shift the range of boost downward toward the guitar’s midrange for greater flexibility.


  • Gain-selected N.O.S. PNP Germanium transistor
  • Selectable Mid/Hi Voicing via external toggle
  • Heavy-duty True-bypass switching
  • 9VDC power jack
  • 9V battery included
  • LED Indicator

Expand your tonal repertoire with Hartman Electronics today. Order now!


Vintage Germanium Boost Guitar Effects Pedal Specifications:

  • Power: <20mA @ 9VDC (positive ground)
  • Dimensions: Width: 2.3" (59mm), Height: 2.1" (54mm), Length: 4.5" (115mm)
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