Germanium AC-128 treble booster inspired by Rangemaster. Voltage inverter for standard power.

Fuzz with Rangemaster-style treble boost influence. Provides vintage-inspired fuzz with touch-sensitive cleanup.

BJF dual booster combining Little Red Trebler and Red Rooster. 40dB boost, 15dB treble boost at 4kHz.

Silicon Rangemaster treble boost with sweepable frequency range control.

Multidriver spanning treble boost to crunchy distortion to fuzzy sustain—all-in-one gain shaping with 9V DC.

Handwired Dallas Rangemaster replica. Hand-picked germanium transistor. Twenty units worldwide.

Dallas Rangemaster recreation with hand-picked germanium. Named for Clapton's Bluesbreakers album.

CV7003 germanium treble booster with three-way EQ switch. Rangemaster heritage with military-spec transistors.

Treble booster in Rangemaster style. Designed for pushing amps into overdrive.

Zonk Machine MKII + Rangemaster treble boost (Marc Bolan s Shatterbox) with Big/Bigger voicing toggle.

R.J. Ronquillo signature 3-in-1: silicon treble boost, Herculean V2 overdrive, PT2399 slapback echo.

Treble booster with master volume and bass control, capturing Rangemaster tones with added flexibility and tube-like feel.

Limited-run germanium multi-fuzz with military-spec OC44 transistors for richer lows.

Dual-channel British preamp with Plexi-style overdrive and Rangemaster-style EQ boost.

Treble booster with hand-selected NOS 2N2222A transistor. Three-way toggle: treble, mid, or fat voicing.

Rangemaster-into-Laney setup capturing the foundation of doom metal tone.

Smooth treble boost for cutting lead tones. Offers clean gain boost with minimal signal coloration.

1176-style compressor with Rangemaster boost, 3-band EQ, and 23V internal headroom.

DIY PCB for building a Dallas Rangemaster clone - the 1965 treble booster used by Brian May and Tony Iommi.

Versatile OD1-based overdrive functioning as clean boost, treble booster, or standalone drive.

Full-range overdrive with bass and treble boost/cut, versatile tone shaping.

Sunface fuzz meets Beano Boost treble booster. Tri-germanium circuit, two true-bypass sides.

JFET Class-A preamp/booster with parametric mids, treble control, and impedance switch for Rangemaster-style tones.

Rangemaster treble boost with NOS OC71 germanium transistors. Limited to 700 units, sold out fast.