What tubes does the Gibson GA-8 (6V6) - Normal use?

The Gibson GA-8 (6V6) - Normal uses 1× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Gibson GA-8 (6V6) - Normal produced?

The Gibson GA-8 (6V6) - Normal was produced 1953–1960.

Gibson GA-8 (6V6) - Normal preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Gibson GA-8 with 6V6 output tubes was a compact student combo delivering warm, clean American tones in a simple but effective circuit. It was popular as a beginner and practice amp throughout the 1950s, offering reliable performance at an accessible price.

Years produced: 1953–1960
Made in: US
Wattage: 8W
Channels: 1
Preamp tubes: 1× 12AX7
Power tubes: 2× 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.