What tubes does the Fender Champ 12 - Clean use?

The Fender Champ 12 - Clean uses 2× 7025 preamp tubes.

When was the Fender Champ 12 - Clean produced?

The Fender Champ 12 - Clean was produced 1987–1992.

Fender Champ 12 - Clean preset

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

The Champ 12 is a late-1980s Fender 1×12 practice and recording combo with footswitchable Clean and Overdrive channels, switched by LED/light-dependent resistors. Clean has its own Volume; Overdrive has Gain and Volume, and both share Treble and Bass with a pull Mid Boost. Spring reverb, tape inputs, a line output and a headphone jack surround a single-ended output valve on a solid-state rectifier, rated 10 watts RMS into 8 ohms.

Years produced: 1987–1992
Wattage: 10W
Channels: 2
Preamp tubes: 2× 7025

Tags: two-channel, reverb, class-a, low-wattage, crunch, practice.

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.