What tubes does the Fender Bandmaster AB763 - Vibrato use?

The Fender Bandmaster AB763 - Vibrato uses 4× 12AX7, 1× 12AT7 preamp tubes and 2× 6L6 power tubes.

When was the Fender Bandmaster AB763 - Vibrato produced?

The Fender Bandmaster AB763 - Vibrato was produced 1963–1967.

Fender Bandmaster AB763 - Vibrato preset

Verified · 92/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Fender Bandmaster AB763 is a 45W blackface-era piggyback head that shares the fundamental AB763 circuit topology with other blackface Fender models, featuring two channels, spring reverb, and vibrato. Designed as a mid-powered head for use with external speaker cabinets, it delivers the classic blackface clean tone with generous headroom. The Bandmaster name spanned multiple decades and circuit revisions in the Fender lineup.

Years produced: 1963–1967
Made in: USA
Wattage: 45W
Channels: 2
Preamp tubes: 4× 12AX7, 1× 12AT7
Power tubes: 2× 6L6

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.