Fender Showman Blackface Ab763 preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Showman Blackface AB763 is the definitive blackface Showman, using the AB763 circuit to drive 85 watts through two 6L6 output tubes. This is the clean, powerful head associated with Dick Dale and the early professional Fender stage sound.

• Years produced: 1963–1967
• Made in: USA
• Wattage: 85W
• Channels: 2
• Preamp tubes: 4× 12AX7, 1× 12AT7
• Power tubes: 2× 6L6

Known for: Dick Dale.

Tags: american, clean, blackface, high-wattage, 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.