What tubes does the Fender Pro Reverb Ultralinear use?

The Fender Pro Reverb Ultralinear uses 4× 12AX7, 1× 12AT7 preamp tubes and 2× 6L6 power tubes.

When was the Fender Pro Reverb Ultralinear produced?

The Fender Pro Reverb Ultralinear was produced 1977–1981.

Fender Pro Reverb Ultralinear preset

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

The Pro Reverb Ultralinear is a late-silverface Pro Reverb using an ultralinear output transformer configuration that alters the output stage's tonal character slightly compared to the standard pentode mode. This CBS-era refinement aimed to improve power efficiency and response at 45 watts.

Years produced: 1977–1981
Made in: USA
Wattage: 45W
Channels: 2
Preamp tubes: 4× 12AX7, 1× 12AT7
Power tubes: 2× 6L6

Tags: american, clean, silverface, reverb, 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.