What tubes does the Fender Twin Ii use?

The Fender Twin Ii uses 4× 12AX7 preamp tubes and 4× 6L6 power tubes.

When was the Fender Twin Ii produced?

The Fender Twin Ii was produced 1982–1985.

Fender Twin Ii preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Twin II is a late-CBS-era Twin, produced in the final years of CBS ownership. At approximately 105 watts with four 6L6 output tubes and two 12-inch speakers, it represents the last iteration of the original Twin Reverb platform before the post-CBS reissue era.

Years produced: 1982–1985
Made in: USA
Wattage: 105W
Channels: 2
Preamp tubes: 4× 12AX7
Power tubes: 4× 6L6

Tags: american, clean, high-wattage, vintage.

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.