What tubes does the Ampeg GS-12 Rocket 2 - Normal use?

The Ampeg GS-12 Rocket 2 - Normal uses 3× 12AX7 preamp tubes and 2× 6L6 power tubes.

When was the Ampeg GS-12 Rocket 2 - Normal produced?

The Ampeg GS-12 Rocket 2 - Normal was produced 1966–1970.

Ampeg GS-12 Rocket 2 - Normal preset

Verified · 87/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The GS-12 Rocket 2 is a guitar combo from the second generation of Ampeg's popular Rocket series. The Normal channel delivers clean, warm 6L6 tone with the characteristic American midrange. The Rocket 2 series updated the original Rocket design with a more modern circuit and improved reliability.

Years produced: 1966–1970
Made in: USA
Wattage: 22W
Channels: 2
Preamp tubes: 3× 12AX7
Power tubes: 2× 6L6

Tags: guitar, american, vintage, low-wattage, 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.