DALLAS ARBITER™ RANGEMASTER™ REPLICA COMPLETE KIT

A complete kit for a Dallas Arbiter™ Rangemaster™-style treble booster, the classic way to push a tube amp into bright, singing overdrive.

About the effect

The Rangemaster™ is the vintage single-transistor treble booster that players ran into cranked amps to get more cut and drive. The original used a PNP germanium transistor. This kit builds either a PNP or an NPN silicon transistor Rangemaster™, and you can also build a germanium version if you source the germanium transistor yourself (the project page notes they are available from Small Bear and other sources). An NPN germanium version lets you share a negative-ground supply with your other pedals, and the project page also offers a charge pump version so a PNP build can be daisy-chained with negative-ground pedals.

A tip from Alex Anest on the project page: adjusting the input cap changes the tonal range. About 0.033µF or 0.05µF suits single-coil pickups, and 0.005µF to 0.001µF suits humbuckers.

What you get

• All the parts and materials you need to build either silicon version (PNP or NPN), including the PCB and the silicon transistor.
• The germanium transistor is not included.
• 125B: 125B enclosure.
• 1590B: the smaller 1590B enclosure.
• No Enclosure: everything except the enclosure.
• See our general information about our kits.

Build resources

• Complete instructions for this kit
• 125B enclosure specification sheet
• 1590B enclosure specification sheet (smaller enclosure)

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