What tubes does the Fender Champ 5F1 use?

The Fender Champ 5F1 uses 1× 12AX7 preamp tubes and 1× 6V6GT power tubes.

When was the Fender Champ 5F1 produced?

The Fender Champ 5F1 was produced 1956–1964.

Fender Champ 5F1 preset

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

The 5F1 is the late-tweed Champ: one 12AX7, one single-ended 6V6GT in class A and a 5Y3GT rectifier, with a volume control only, into an 8-inch speaker. At about 5 watts it breaks up into rich, compressed overdrive at low volume, which has made it a studio favorite and a common first build for amp makers.

Years produced: 1956–1964
Made in: USA
Wattage: 5W
Channels: 1
Preamp tubes: 1× 12AX7
Power tubes: 1× 6V6GT

Tags: american, tweed, vintage, 6v6, class-a, low-wattage, breakup.

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.