Gretsch 6152 preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Gretsch G6152 is a Valco-built combo with spring reverb and tremolo. Three inputs feed a 12AX7 stage and a single volume control; the other half of that 12AX7 and a pentode-wired 12AX7 drive the reverb pan, which a third 12AX7 recovers through a reverb level control with footswitch, alongside a tone control. A 12AX7 tremolo with speed and footswitch modulates the input stage, and a single-ended 6V6 on a 5Y3 rectifier drives the speaker.

Tags: american, 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.