What tubes does the Fender Tremolux AB763 - Vibrato use?

The Fender Tremolux AB763 - Vibrato uses 3× 12AX7, 1× 12AT7 preamp tubes and 2× 6L6 power tubes.

When was the Fender Tremolux AB763 - Vibrato produced?

The Fender Tremolux AB763 - Vibrato was produced 1963–1966.

Fender Tremolux AB763 - Vibrato preset

Verified · 97/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Fender Tremolux AB763 is a 35W blackface-era piggyback amp notable for being one of the few blackface models without reverb, instead featuring Fender's smooth optical tremolo circuit. It uses 6L6 power tubes in a fixed-bias configuration, delivering clean headroom and a warm, full-bodied tone. A relatively short-lived model, the Tremolux was discontinued before the silverface transition and is prized today for its straightforward, no-reverb blackface voice.

Years produced: 1963–1966
Made in: USA
Wattage: 35W
Channels: 2
Preamp tubes: 3× 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.