What tubes does the Fender Quad Reverb - Normal use?

The Fender Quad Reverb - Normal uses 3× 7025, 1× 12AX7A, 2× 12AT7 preamp tubes and 4× 6L6GC power tubes.

Who famously used the Fender Quad Reverb - Normal?

Albert Collins are among the notable players associated with the Fender Quad Reverb - Normal.

Fender Quad Reverb - Normal preset

Verified · 84/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

This is the early-1970s silverface 100-watt reverb circuit used in the Quad Reverb 4×12 combo and its Twin Reverb and Dual Showman Reverb siblings. Normal and Vibrato channels each have Volume, Treble, Middle, Bass and a bright switch. A 12AT7 drives the spring reverb and a 12AX7A runs the bias vibrato; a plain master volume, without the later push-pull boost, feeds a 12AT7 phase inverter and four fixed-bias 6L6GCs on a silicon rectifier.

Made in: USA
Wattage: 100W
Channels: 2
Preamp tubes: 3× 7025, 1× 12AX7A, 2× 12AT7
Power tubes: 4× 6L6GC

Known for: Albert Collins.

Tags: american, vintage, silverface, reverb, vibrato, 6l6, high-wattage.

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.