What tubes does the Fender Bandmaster Aa270 use?

The Fender Bandmaster Aa270 uses 4× 12AX7, 1× 12AT7 preamp tubes and 2× 6L6 power tubes.

When was the Fender Bandmaster Aa270 produced?

The Fender Bandmaster Aa270 was produced 1968–1972.

Fender Bandmaster Aa270 preset

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

The Bandmaster AA270 is the first silverface Bandmaster, sharing its circuit revision with the 1968 model year update. At 40 watts with two 6L6 output tubes in a head configuration, it provides clean American tones suited for pairing with period-correct speaker cabinets.

Years produced: 1968–1972
Made in: USA
Wattage: 40W
Channels: 2
Preamp tubes: 4× 12AX7, 1× 12AT7
Power tubes: 2× 6L6

Tags: american, clean, silverface, 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.