What tubes does the Ampeg R-12-A - Normal use?

The Ampeg R-12-A - Normal uses 2× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Ampeg R-12-A - Normal produced?

The Ampeg R-12-A - Normal was produced 1958–1962.

Ampeg R-12-A - Normal preset

Close · 62/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The original R-12-A Normal channel documents Ampeg's early Rocket guitar combo before the addition of spring reverb. The warm 6V6 output stage produces classic late-1950s American guitar tone. The R-12-A represents the pre-reverb Rocket in its most elemental form.

Years produced: 1958–1962
Made in: USA
Wattage: 12W
Channels: 2
Preamp tubes: 2× 12AX7
Power tubes: 2× 6V6

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.