What tubes does the Fender 63 use?

The Fender 63 uses 2× 12AX7, 1× 12AT7 preamp tubes and 1× 6V6 power tubes.

When was the Fender 63 produced?

The Fender 63 was produced 1961–1966.

Fender 63 preset

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

The '63 Fender Reverb unit (standalone) is a tube-driven spring reverb device that became standard equipment in countless recording studios and live rigs. Its 6V6-powered driver and 12AT7-based recovery circuit produce a warm, spacious reverb that remains the benchmark for spring reverb sound.

Years produced: 1961–1966
Made in: USA
Wattage: 6W
Channels: 1
Preamp tubes: 2× 12AX7, 1× 12AT7
Power tubes: 1× 6V6

Tags: american, vintage, reverb.

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.