What tubes does the Fender Custom Vibrolux use?

The Fender Custom Vibrolux uses 3× 12AX7, 1× 12AT7 preamp tubes and 2× 6L6 power tubes.

When was the Fender Custom Vibrolux produced?

The Fender Custom Vibrolux was produced 1969–1979.

Fender Custom Vibrolux preset

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

The Custom Vibrolux is a silverface-era 2×10 combo built around Fender's Vibrolux circuit with various custom modifications. At 35 watts through two 6L6 output tubes, it delivers warm, articulate clean tones with the characteristic Fender tremolo.

Years produced: 1969–1979
Made in: USA
Wattage: 35W
Channels: 2
Preamp tubes: 3× 12AX7, 1× 12AT7
Power tubes: 2× 6L6

Tags: american, clean, silverface, vintage, tremolo.

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.