What tubes does the Gibson GA-46 - Channel II use?

The Gibson GA-46 - Channel II uses 3× 12AX7 preamp tubes and 2× 6L6 power tubes.

When was the Gibson GA-46 - Channel II produced?

The Gibson GA-46 - Channel II was produced 1961–1965.

Gibson GA-46 - Channel II preset

Close · 77/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Gibson GA-46 is a mid-power 1960s combo from the GA line, offering clean, headroom-rich tones from its 6L6 output stage. Two channels allow separate voicing for rhythm and lead playing. The circuit is representative of Gibson's reliable, straightforward approach to amplifier design during the early 1960s — no frills, but excellent clean tone with a warm American character. The GA-46 is a sturdy vintage combo that has remained a quiet favorite among collectors.

Years produced: 1961–1965
Made in: USA
Wattage: 25W
Channels: 2
Preamp tubes: 3× 12AX7
Power tubes: 2× 6L6

Tags: american, clean, 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.