Fender Dual Showman AC568 - Normal preset

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

The AC568 Dual Showman is a 1968 head from the switch between blackface and silverface. It has Normal and Vibrato channels without reverb, and four 6L6GCs on a silicon rectifier give very large clean headroom for guitar or bass.

• Years produced: 1968
• Made in: USA
• Wattage: 100W
• Channels: 2
• Preamp tubes: 2× 7025, 1× 12AX7, 1× 12AT7
• Power tubes: 4× 6L6GC

Tags: american, vintage, silverface, vibrato, 6l6, high-wattage, 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.