Rio - Germanium Treble Booster

Handmade boutique germanium treble to full frequency booster. Now with backlit pause sign and full face plate!

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Made to order item. Will be shipped 3-7 days after order.

The base model is available with NOS Tungsram OC44K or OC1044 germanium transistor. Printed circuit board. Neutrik jacks, Dailywell foot switch.

For a limited time also available with repurposed black Valvo OC44 with a heat sink glued on. These have an HFE range of 55-125. A limited supply of black Mullard/Philips OC44s are also available. There have an HFE of 55-65. These will be made with tagboard construction.

The controls:

• Boost: the amount of boost from low to full
• Range (knob option): Clockwise acts like a Treble Booster. Anti clockwise acts like a full frequency booster
  

Matt black Powder coated aluminum 125B size die-cast box. True bypass. Operates on 9V battery or center negative power supply. Positive ground circuit, please use isolated power supply, DO NOT DAISY CHAIN! Hand built in Hungary (European Union).