What tubes does the Fender Bassman AB165 - Normal use?

The Fender Bassman AB165 - Normal uses 3× 7025, 1× 12AT7 preamp tubes and 2× 6L6GC power tubes.

When was the Fender Bassman AB165 - Normal produced?

The Fender Bassman AB165 - Normal was produced 1965–1968.

Fender Bassman AB165 - Normal preset

Verified · 93/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The AB165 is a mid-1960s blackface Bassman head revision. The Bass Instrument channel has two inputs, treble, bass, volume and a Deep switch, and the Normal channel has two inputs, treble, bass, volume and a Bright switch. Both channels mix into a further 7025 gain stage, and a 12AT7 long-tail inverter drives two fixed-bias 6L6GCs from a silicon diode rectifier, giving tight, articulate clean tone.

Years produced: 1965–1968
Made in: USA
Wattage: 50W
Channels: 2
Preamp tubes: 3× 7025, 1× 12AT7
Power tubes: 2× 6L6GC

Tags: american, vintage, blackface, bass, 6l6, clean.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.