Fender '63 Vibroverb Reissue - Normal preset

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

The '63 Vibroverb reissue (1990) recreates the original brownface Vibroverb of 1963, the first Fender amp with built-in spring reverb. Normal and Bright channels each have two inputs, volume, treble and bass. A 12AT7 drives the reverb, and a 12AX7 vibrato with speed and intensity is footswitchable along with the reverb. A long-tail inverter drives a fixed-bias pair of 6L6GCs from a silicon rectifier into two 10-inch speakers, rated 40 W RMS into 4 ohms.

• Introduced: 1990
• Made in: USA
• Wattage: 40W
• Channels: 2
• Preamp tubes: 5× 12AX7, 1× 12AT7
• Power tubes: 2× 6L6GC

Tags: american, reissue, brownface, reverb, vibrato, 6l6, two-channel.

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.