What tubes does the Fender Super 6G4-A - Vibrato use?

The Fender Super 6G4-A - Vibrato uses 4× 7025, 2× 12AX7 preamp tubes and 2× 5881 power tubes.

When was the Fender Super 6G4-A - Vibrato produced?

The Fender Super 6G4-A - Vibrato was produced 1961–1963.

Fender Super 6G4-A - Vibrato preset

Verified · 93/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The 6G4-A is a revision of the early-1960s brownface Super Amp, a 2×10 combo with Normal and Vibrato channels, each with its own volume, treble and bass. Its harmonic vibrato uses two 12AX7s with speed and intensity controls and a footswitch, and a 7025 long-tail phase inverter drives a pair of 5881s on a GZ34 rectifier for about 40 watts of warm, full brownface tone.

Years produced: 1961–1963
Made in: USA
Wattage: 40W
Channels: 2
Preamp tubes: 4× 7025, 2× 12AX7
Power tubes: 2× 5881

Tags: american, vintage, brownface, vibrato, 6l6, clean.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.