What tubes does the Fender Tremolux 6G9 Lo use?

The Fender Tremolux 6G9 Lo uses 2× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Fender Tremolux 6G9 Lo produced?

The Fender Tremolux 6G9 Lo was produced 1961–1963.

Fender Tremolux 6G9 Lo preset

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

The Tremolux 6G9 Lo is an alternate layout for the brownface Tremolux head, describing the same 18-watt, dual-6V6, optical tremolo circuit.

Years produced: 1961–1963
Made in: USA
Wattage: 18W
Channels: 2
Preamp tubes: 2× 12AX7
Power tubes: 2× 6V6

Tags: american, brownface, 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.