What tubes does the Fender 1946 Pro use?

The Fender 1946 Pro uses 2× 6SC7 preamp tubes and 2× 6L6 (plus 5Y3 rectifier) power tubes.

When was the Fender 1946 Pro produced?

The Fender 1946 Pro was produced 1946–1948.

Fender 1946 Pro preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The 1946 Fender Professional (often called the 'Dual Professional') represents the earliest chapter of Leo Fender's amplifier story, predating the famous model-code naming system. Built in Fullerton under the K&F / Fender Electric Instrument banner, it featured an octal preamp tube topology and a simple one-channel layout that delivered warm, woody clean tones. This amp is the ancestor of the entire Fender professional line and is prized by historians and collectors as a foundational artifact of electric guitar amplification.

Years produced: 1946–1948
Made in: USA
Wattage: 15W
Channels: 1
Preamp tubes: 2× 6SC7
Power tubes: 2× 6L6 (plus 5Y3 rectifier)

Tags: american, clean, vintage.

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.