What tubes does the Vox AC30 Reverb 1978 - Bright use?

The Vox AC30 Reverb 1978 - Bright uses 3× ECC83 preamp tubes and 4× EL84 power tubes.

When was the Vox AC30 Reverb 1978 - Bright produced?

The Vox AC30 Reverb 1978 - Bright was produced 1978–1980.

Vox AC30 Reverb 1978 - Bright preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

This schematic documents the Vox AC30 as it existed in 1978, during the era when Vox production had moved through several ownership changes following the original JMI collapse in 1968. The 1978 AC30 retains the classic four-EL84 cathode-biased output stage and Top Boost channel but reflects component and layout changes introduced by Dallas Arbiter and later Birch-Stolec ownership. Build quality and component sourcing varied considerably from the original JMI-era units.

Years produced: 1978–1980
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.