What tubes does the Gibson Ga86 use?

The Gibson Ga86 uses 3× 12AX7 preamp tubes and 4× 6L6 power tubes.

When was the Gibson Ga86 produced?

The Gibson Ga86 was produced 1964–1968.

Gibson Ga86 preset

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

The Gibson GA-86 is a late GA-series high-powered combo representing Gibson's evolving amplifier design philosophy in the mid-to-late 1960s. Fifty watts from four 6L6 tubes provides authoritative clean headroom. Two channels handle rhythm and lead duties. The GA-86 shows some circuit refinements over earlier high-powered models while retaining the fundamental warm American tone character that distinguished Gibson amps from their Fender contemporaries.

Years produced: 1964–1968
Made in: USA
Wattage: 50W
Channels: 2
Preamp tubes: 3× 12AX7
Power tubes: 4× 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.