What tubes does the Vox AC30TB Standard 1989 - Normal use?

The Vox AC30TB Standard 1989 - Normal uses 3× ECC83 preamp tubes and 4× EL84 power tubes.

When was the Vox AC30TB Standard 1989 - Normal produced?

The Vox AC30TB Standard 1989 - Normal was produced 1989–1992.

Vox AC30TB Standard 1989 - Normal preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

This is the Vox AC30 schematic from approximately 1989, during the early Korg ownership period when Vox amps were manufactured in the UK under closer supervision. The circuit closely mirrors the classic JMI-era AC30 topology with Normal and Top Boost channels, four EL84s in cathode bias, and the characteristic lack of negative feedback producing the amp's famous compression and bloom. Korg-era build quality improved significantly over the Dallas Arbiter years.

Years produced: 1989–1992
Made in: UK
Wattage: 30W
Channels: 2
Preamp tubes: 3× ECC83
Power tubes: 4× EL84

Tags: british, 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.