What tubes does the Fender Twin-Amp 5F8-A - Bright use?

The Fender Twin-Amp 5F8-A - Bright uses 3× 12AX7 preamp tubes and 4× 6L6 power tubes.

When was the Fender Twin-Amp 5F8-A - Bright produced?

The Fender Twin-Amp 5F8-A - Bright was produced 1957–1960.

Fender Twin-Amp 5F8-A - Bright preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Fender Twin-Amp 5F8-A is a wide-panel tweed-era model and minor revision of the 5F8, delivering approximately 50W through four 6L6 tubes into two 12" speakers. Tonally very close to the 5F8, it represents the pinnacle of Fender's tweed-era clean power.

Years produced: 1957–1960
Made in: USA
Wattage: 50W
Channels: 2
Preamp tubes: 3× 12AX7
Power tubes: 4× 6L6

Tags: american, clean, 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.