What tubes does the Ampeg AC-12 - Main use?

The Ampeg AC-12 - Main uses 2× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Ampeg AC-12 - Main produced?

The Ampeg AC-12 - Main was produced 1961–1965.

Ampeg AC-12 - Main preset

Verified · 86/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The AC-12 is a compact Ampeg guitar combo using 6V6 output tubes. The Main channel delivers warm, slightly compressed vintage tone characteristic of American low-power designs of the early 1960s. A practical and affordable student-oriented combo from Ampeg's early lineup.

Years produced: 1961–1965
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.