What tubes does the Gibson Atlas IV - Normal use?

The Gibson Atlas IV - Normal uses 3× 12AX7 preamp tubes and 2× 6L6 power tubes.

When was the Gibson Atlas IV - Normal produced?

The Gibson Atlas IV - Normal was produced 1962–1967.

Gibson Atlas IV - Normal preset

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

The Gibson Atlas IV was a professional-grade combo from Gibson's 1960s lineup, delivering robust clean headroom and warm American tones across two channels. It was aimed at working musicians who needed reliability and volume on stage.

Years produced: 1962–1967
Made in: US
Wattage: 40W
Channels: 2
Preamp tubes: 3× 12AX7
Power tubes: 2× 6L6

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.