What tubes does the Fender Tremolux Ab763 Lo use?

The Fender Tremolux Ab763 Lo uses 3× 12AX7, 1× 12AT7 preamp tubes and 2× 6L6 power tubes.

When was the Fender Tremolux Ab763 Lo produced?

The Fender Tremolux Ab763 Lo was produced 1963–1966.

Fender Tremolux Ab763 Lo preset

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

The Tremolux AB763 Lo is an alternate layout for the blackface Tremolux AB763 head. The same 35-watt, dual-6L6 blackface circuit with optical tremolo applies.

Years produced: 1963–1966
Made in: USA
Wattage: 35W
Channels: 2
Preamp tubes: 3× 12AX7, 1× 12AT7
Power tubes: 2× 6L6

Tags: american, clean, blackface, 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.