What tubes does the Gibson GA-5T - Normal use?

The Gibson GA-5T - Normal uses 1× 12AX7 preamp tubes and 1× 6V6 power tubes.

When was the Gibson GA-5T - Normal produced?

The Gibson GA-5T - Normal was produced 1956–1963.

Gibson GA-5T - Normal preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Gibson GA-5T was a small student amp featuring tremolo, one of the few effects available on such a compact unit in the late 1950s. Its single-ended 6V6 output stage produced characterful, harmonically rich tones prized by blues players.

Years produced: 1956–1963
Made in: US
Wattage: 4W
Channels: 1
Preamp tubes: 1× 12AX7
Power tubes: 1× 6V6

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.