Fender '65 Princeton Reverb preset

Verified · 92/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The '65 Princeton Reverb reissue (2008) recreates the small blackface Princeton Reverb: one channel with two inputs, volume, treble and bass, plus spring reverb and bias-vary tremolo with speed and intensity, both footswitchable. A 12AT7 drives the reverb and 12AX7s handle the gain stages, tremolo and phase inverter, feeding a fixed-bias pair of 6V6GTs from a 5AR4 rectifier, rated 15 W into 8 ohms. Its sweet clean tone, early breakup and lush reverb at low volume suit recording and small rooms.

Tags: american, reissue, blackface, reverb, tremolo, 6v6, low-wattage.

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.