What tubes does the Fender Princeton Boost use?

The Fender Princeton Boost uses 2× 12AX7 preamp tubes and 2× 6V6GT power tubes.

When was the Fender Princeton Boost produced?

The Fender Princeton Boost was produced 1970–1982.

Fender Princeton Boost preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Princeton Boost is a silverface-era variant of the Princeton platform adding a Master Volume control and a boost circuit to the standard Princeton topology. Like the Deluxe Boost, it was Fender's response to players wanting more overdrive capability without resorting to external pedals. The underlying Princeton voice — warm, touch-sensitive, and naturally blooming — remains intact, with the boost stage adding harmonic density and sustain on demand. The push-pull boost function available on some controls extends the tonal range of the basic Princeton platform. Many players bypass the boost circuit entirely, preferring the clean Princeton tone with the master volume for stage-appropriate output.

Years produced: 1970–1982
Made in: USA
Wattage: 12W
Channels: 2
Preamp tubes: 2× 12AX7
Power tubes: 2× 6V6GT

Tags: american, clean.

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.