What tubes does the Gibson GA-1RT - Normal use?

The Gibson GA-1RT - Normal uses 1× 12AX7 preamp tubes and 1× 6BQ5 power tubes.

When was the Gibson GA-1RT - Normal produced?

The Gibson GA-1RT - Normal was produced 1963–1967.

Gibson GA-1RT - Normal preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Gibson GA-1RT was a compact student amp with reverb and tremolo built into Gibson's smallest combo format. Despite its small size, it offered the signature Gibson clean tone with pleasant onboard effects.

Years produced: 1963–1967
Made in: US
Wattage: 3W
Channels: 1
Preamp tubes: 1× 12AX7
Power tubes: 1× 6BQ5

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.