What tubes does the Fender Bandmaster AB763 use?

The Fender Bandmaster AB763 uses 3× 12AX7, 1× 12AT7 preamp tubes and 2× 6L6GC power tubes.

When was the Fender Bandmaster AB763 produced?

The Fender Bandmaster AB763 was produced 1964–1968.

Fender Bandmaster AB763 preset

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

The blackface Bandmaster is a two-channel piggyback head (Normal and Vibrato) with optical vibrato but no reverb. A pair of 6L6s on a solid-state rectifier give about 40 watts of firm, clean blackface tone, usually paired with a 2×12 cabinet.

Years produced: 1964–1968
Made in: USA
Wattage: 40W
Channels: 2
Preamp tubes: 3× 12AX7, 1× 12AT7
Power tubes: 2× 6L6GC

Tags: american, vintage, blackface, vibrato, 6l6, clean.

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.