ViridianDynamic Overdrive

From the vendor

A very unique adaptation of the classic Tube Screamer circuit, this pedal is seen as a secret weapon for rhythm work by some guitarists such as Jeffrey Kunde.

The Viridian Dynamic Overdrive is based on the BJFe / Mad Professor Little Green Wonder, an op-amp drive that can be viewed as BJFe’s take on the Tube Screamer.

The BJFe Little Green Wonder was first released in 2003. Only 117 units were ever produced, so the original BJFe version is extremely rare.[1] Later, in 2007, Mad Professor Amplification of Finland released the Little Green Wonder under license from BJFe, the first of many licensed designs that would follow. The BJFe version had undergone a few minor tweaks throughout the small run, and the Mad Professor version was based on the final version, which was the one that Bjorn was most happy with.

The Viridian is based on the Mad Professor version of the Little Green Wonder. The only modification is the inclusion of two optional tapering resistors so that a more common 100kA dual potentiometer can be used for the tone control.

Note: This project uses a type of capacitor that has been temporarily discontinued by WIMA. Please see our news article about the issue and the substitution spreadsheet for project-specific recommendations. We are stocking a limited supply in the mean time. The build document has not yet been updated to reflect this.