Fender Princeton 5F2-A preset

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

The 5F2-A is the last tweed Princeton, from the late 1950s. A 12AX7 preamp with volume and tone drives a single-ended 6V6GT on a 5Y3GT rectifier. At about 4–5 watts it gives warm cleans and natural overdrive at low volume, and it is a popular circuit for home builders.

• Made in: USA
• Wattage: 5W
• Channels: 1
• Preamp tubes: 1× 12AX7
• Power tubes: 1× 6V6GT

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