CHARGE PUMP (BI-POLAR) KIT

A complete kit for a bipolar charge pump: it turns a single 9 volt supply into plus/minus 9 volts, so you can power circuits that need dual rails from one battery or adapter.

About this kit

Charge pumps are an easy way to get dual power from a single 9 volt source. This bipolar board, derived from the GEOFEX charge pump designs, gives you 9V+, 9V- and a ground reference from one 9 volt battery or supply. That makes it a good fit for Craig Anderton projects and other circuits that call for bipolar power.

It has another handy use: supplying positive-ground power from a negative-ground input. That lets PNP-transistor pedals such as Fuzz Face™, Rangemaster™ and Tone Bender™ replicas share a daisy-chained pedalboard supply with the rest of your board, with no special power required. The project page has wiring instructions for several of these.

What you get

• All the parts to build the working circuit that converts 9 volt single-rail power to plus/minus 9 volt (bipolar) power
• General information about our kits

Build resources

• Complete instructions for this kit
• Bipolar power board schematic, layout and layout with no power switching
• Using the charge pump with a positive-ground PNP Fuzz Face™

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