What tubes does the Fender Bassman Ab165 use?

The Fender Bassman Ab165 uses 3× 12AX7, 1× 12AT7 preamp tubes and 4× 6L6 power tubes.

When was the Fender Bassman Ab165 produced?

The Fender Bassman Ab165 was produced 1965–1967.

Fender Bassman Ab165 preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Bassman AB165 is a blackface Bassman head revision with subtle circuit changes from the earlier AA164. At 50 watts with four 6L6 output tubes, it is part of the same blackface Bassman family known for tight, articulate clean tones.

Years produced: 1965–1967
Made in: USA
Wattage: 50W
Channels: 2
Preamp tubes: 3× 12AX7, 1× 12AT7
Power tubes: 4× 6L6

Tags: american, clean, blackface, 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.