Fender Super Reverb AA763 - Vibrato preset

Verified · 92/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The AA763 is the first blackface Super Reverb, a 4×10 combo with Normal and Vibrato channels. Normal has volume, treble and bass with a bright switch; Vibrato adds a middle control, 12AT7-driven spring reverb with a 7025 recovery stage, and 12AX7 optical vibrato with speed and intensity. A 12AT7 long-tail inverter drives two 6L6GCs for about 45 watts; the drawing marks the GZ34 rectifier changed to a 5U4GB. It is effectively the same circuit as the later AB763.

• Made in: USA
• Wattage: 45W
• Channels: 2
• Preamp tubes: 3× 7025, 1× 12AX7, 2× 12AT7
• Power tubes: 2× 6L6GC

Tags: american, vintage, blackface, reverb, vibrato, 6l6, 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.