What tubes does the Fender Bronco Aa764 use?

The Fender Bronco Aa764 uses 1× 12AX7 preamp tubes and 1× 6V6GT power tubes.

When was the Fender Bronco Aa764 produced?

The Fender Bronco Aa764 was produced 1967–1974.

Fender Bronco Aa764 preset

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

The Fender Bronco AA764 is a compact, 5-watt student combo built on a single-ended 6V6 circuit with the blackface-era AA764 designator. Designed for beginning guitarists and home practice, the Bronco shares its fundamental circuit approach with the Champ, making it a capable low-power amp that breaks into warm, harmonically rich overdrive at modest volumes. The Bronco's simplicity and affordability have made it a popular choice for studio recording and home practice.

Years produced: 1967–1974
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.