What tubes does the Fender Champ Vibro AA764 use?

The Fender Champ Vibro AA764 uses 1× 12AX7 preamp tubes and 1× 6V6GT power tubes.

When was the Fender Champ Vibro AA764 produced?

The Fender Champ Vibro AA764 was produced 1964–1968.

Fender Champ Vibro AA764 preset

Close · 75/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Fender Vibro Champ AA764 adds onboard tremolo (vibrato) to the standard blackface Champ circuit. The AA764 designation is shared with the standard Champ; the Vibro Champ variant simply adds a tremolo circuit using an additional 12AX7 tube section and an optocoupler. The result is the same warm, 5-watt, single-ended 6V6 tone with the added musicality of Fender's optical tremolo effect.

Years produced: 1964–1968
Made in: USA
Wattage: 5W
Channels: 1
Preamp tubes: 1× 12AX7
Power tubes: 1× 6V6GT

Tags: american, clean, 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.