What tubes does the Fender Bassman 50 use?

The Fender Bassman 50 uses 3× 12AX7 preamp tubes and 2× 6L6GC power tubes.

When was the Fender Bassman 50 produced?

The Fender Bassman 50 was produced 1972–1977.

Fender Bassman 50 preset

Close · 75/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Fender Bassman 50 is a silverface-era piggyback head that maintained the Bassman name through the CBS years. At 50 watts with two channels and a solid-state rectifier, it delivers clean, punchy amplification with strong low-end extension. Guitar players who push the Bassman 50 into its operating range find a smooth, touch-responsive clean platform that echoes the spirit of the original tweed models at a fraction of the vintage price.

Years produced: 1972–1977
Made in: USA
Wattage: 50W
Channels: 2
Preamp tubes: 3× 12AX7
Power tubes: 2× 6L6GC

Tags: american, vintage, 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.