Fender Vibrolux Reverb AB568 - Normal preset

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

The Vibrolux Reverb AB568 is the 1968 CBS-era revision of the Vibrolux Reverb, a 2×10 combo with Normal and Vibrato channels, each with volume, treble and bass and a bright switch. The Vibrato channel adds 12AT7-driven spring reverb and 12AX7 optical vibrato with speed and intensity. A 12AT7 long-tail inverter drives two fixed-bias 6L6GCs on a 5U4GB rectifier for about 35 watts.

• Made in: USA
• Wattage: 35W
• Channels: 2
• Preamp tubes: 3× 7025, 1× 12AX7, 2× 12AT7
• Power tubes: 2× 6L6GC

Tags: american, vintage, silverface, clean, reverb, vibrato, 6l6.

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.