Gibson Gibsonette preset

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

The Gibsonette is a small single-channel 1950s Gibson amp with two inputs, a volume control and no tone control. Both halves of a single 12AX7 provide the gain, driving a pair of cathode-biased 6V6GT output tubes with no separate phase-inverter valve: the second 6V6 is driven from a tap on the first tube's circuit. A 5Y3GT rectifier supplies the power, into a single speaker. It is the GA-8 6V6 circuit without the tone control.

• Made in: USA
• Channels: 1
• Preamp tubes: 1× 12AX7
• Power tubes: 2× 6V6GT

Tags: american, vintage, clean, 6v6.

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.