Erik van der Werff

We believe that the most pure, direct and responsive valve tones are to be found in the most simple circuits, but the real magic is in the fine detail.

Our designs begin with an idea or a circuit which can be original or from an outside source. A rough schematic of one or more stages is drawn with first guess component values. Using tube manual or measured data, calculations are performed to verify or adjust the component values. Component values, bias points, power supply voltages, and other parameters