Gibson GA-45RVT Saturn - Reverb preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The GA-45RVT Saturn is a 1960s Gibson combo with Normal and Reverb channels, two inputs each, with loudness, treble and bass and a presence switch on each channel. The Reverb channel adds spring reverb with a level control, and a photocell tremolo has depth and frequency, both on a foot pedal. A 6EU7 inverter drives a fixed-bias push-pull pair of 6L6GC tubes, with an OA2 regulator and solid-state rectifier, into two 10-inch speakers.

Tags: american, vintage, clean, reverb, tremolo, 6l6.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.