Fender Deluxe Reverb-Amp (Volume Boost, AB763 variant) - Vibrato preset

Verified · 87/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

This schematic documents a variant of the Fender Deluxe Reverb AB763 incorporating a volume boost modification, an unofficial circuit addition that allows the player to push the 22W 6V6 output stage harder for increased breakup. The underlying amp is the standard blackface Deluxe Reverb with its classic spring reverb and vibrato, with the boost as an added feature.

• Years produced: 1963–1967
• Made in: USA
• Wattage: 22W
• Channels: 2
• Preamp tubes: 4× 12AX7, 1× 12AT7
• Power tubes: 2× 6V6

Tags: american, clean, crunch, 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.