What tubes does the Fender The Twin use?

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

When was the Fender The Twin produced?

The Fender The Twin was produced 1987–1994.

Fender The Twin preset

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

The Twin (often called "The Twin" or Red Knob Twin) is a 100-watt 2×12" combo introduced by Fender in 1987 as a high-powered, feature-rich replacement for the Twin Reverb. It features two channels with independent gain and master volume controls, onboard spring reverb, a five-band graphic EQ, and a bias switch to accommodate both 6L6 and EL34 output tubes. The amp was designed to offer versatility for gigging musicians, though its sound is often considered more hi-fi and sterile than vintage blackface or silverface Twin designs. It was produced through the early 1990s as part of Fender's Red Knob series.

Years produced: 1987–1994
Made in: USA
Wattage: 100W
Channels: 2
Preamp tubes: 4× 12AX7
Power tubes: 4× 6L6

Tags: american, vintage, clean.

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.