Fender Tremolux 6G9-B - Bright preset

Verified · 92/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Tremolux 6G9-B is the final brownface-era Tremolux circuit, with Normal and Bright channels each offering two inputs, volume, treble and bass. A 12AX7 oscillator with speed and intensity controls and a footpedal jack varies the output valves' bias for its tremolo pulse, and a 12AX7 long-tail phase inverter drives two 6L6GCs on a GZ34 rectifier with a choke-filtered supply.

• Made in: USA
• Wattage: 35W
• Channels: 2
• Preamp tubes: 2× 7025, 2× 12AX7
• Power tubes: 2× 6L6GC

Tags: american, vintage, brownface, tremolo, 6l6.

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.