What tubes does the Vox Ac120 use?

The Vox Ac120 uses 3× ECC83 preamp tubes and 4× KT88 power tubes.

When was the Vox Ac120 produced?

The Vox Ac120 was produced 1963–1966.

Vox Ac120 preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The AC120 is Vox's most powerful 1960s tube amplifier, using four KT88 output tubes for 120 watts across the Brilliant and Normal channels. Built for the largest venues of the British Invasion era, it is an exceptionally rare amp.

Years produced: 1963–1966
Made in: UK
Wattage: 120W
Channels: 2
Preamp tubes: 3× ECC83
Power tubes: 4× KT88

Tags: british, kt88, vintage, historic, rare.

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.