Fender Twin 6G8 - Normal preset

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

The Twin 6G8 is the early-1960s brown-panel Twin, with Normal and Vibrato channels each offering two inputs, volume, treble and bass, plus a shared presence control. The Vibrato channel carries Fender's harmonic vibrato with speed and intensity and a footpedal jack. Six 7025s run the preamp, vibrato and phase inverter, and four 6L6GCs on a silicon diode rectifier replace the tube rectifier of earlier Twins.

• Made in: USA
• Wattage: 85W
• Channels: 2
• Preamp tubes: 6× 7025
• Power tubes: 4× 6L6GC

Tags: american, vintage, brownface, clean, vibrato, high-wattage, 6l6.

Schematic-derived preset files for 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.