Wurlitzer B30 preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Wurlitzer B30 is a German-built hybrid amplifier: a BFY39 transistor input stage feeds an ECC83 and a push-pull pair of EL500 output pentodes. It has two mixed inputs and served as a general-purpose instrument/keyboard amplifier.

• Made in: Germany
• Channels: 1
• Preamp tubes: 1× ECC83
• Power tubes: 2× EL500

Tags: german, vintage, hybrid, clean.

Schematic-derived preset files for the Neural DSP Quad Cortex and 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.