What tubes does the Gibson GA-79 (stereo) - Channel 1 use?

The Gibson GA-79 (stereo) - Channel 1 uses 3× 12AX7 preamp tubes and 4× 6L6 power tubes.

When was the Gibson GA-79 (stereo) - Channel 1 produced?

The Gibson GA-79 (stereo) - Channel 1 was produced 1960–1963.

Gibson GA-79 (stereo) - Channel 1 preset

Close · 78/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

This alternate schematic document for the GA-79 covers the same high-powered flagship Gibson combo, providing additional or variant circuit information for this 50-watt 6L6 multi-speaker combo. At the top of the GA lineup in terms of power and cabinet size, the GA-79 was Gibson's premier stage amplifier in the early 1960s. Its four 6L6 output tubes deliver massive clean headroom with the warm, articulate American character that defines the GA series.

Years produced: 1960–1963
Made in: USA
Wattage: 50W
Channels: 2
Preamp tubes: 3× 12AX7
Power tubes: 4× 6L6

Tags: american, clean, crunch, 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.