What tubes does the Gibson GA-5 Crestline - Normal use?

The Gibson GA-5 Crestline - Normal uses 1× 12AX7 preamp tubes and 1× 6V6 power tubes.

When was the Gibson GA-5 Crestline - Normal produced?

The Gibson GA-5 Crestline - Normal was produced 1963–1967.

Gibson GA-5 Crestline - Normal preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The GA-5 Crest is the Crestline-era reissue of the original GA-5, featuring updated cosmetics with the same simple single-ended 6V6 circuit underneath. Producing around 4 watts, it retains all the warmth and touch sensitivity of the original GA-5 while wearing the mid-1960s styling Gibson applied across its amplifier line during that period. An ideal small practice and recording combo with natural power amp compression at manageable volumes.

Years produced: 1963–1967
Made in: USA
Wattage: 4W
Channels: 1
Preamp tubes: 1× 12AX7
Power tubes: 1× 6V6

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.