Fender Princeton 5B2 preset

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

The 5B2 is an early-1950s tweed Princeton. A 6SL7 octal dual triode preamp with volume and tone drives a single-ended 6V6 on a 5Y3 rectifier for about 4 watts. It is clean at low settings and breaks up into soft, compressed overdrive when turned up.

• Made in: USA
• Wattage: 4W
• Channels: 1
• Preamp tubes: 1× 6SL7
• Power tubes: 1× 6V6

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.