What tubes does the Vox Reverb Cct Add On use?

The Vox Reverb Cct Add On uses 1× ECC83 preamp tubes.

When was the Vox Reverb Cct Add On produced?

The Vox Reverb Cct Add On was produced 1964–1967.

Vox Reverb Cct Add On preset

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

The Reverb CCT Add-on is a standalone spring reverb add-on circuit designed to be retrofitted to Vox amplifiers that did not include built-in reverb. It uses a tube to drive and recover the spring reverb tank.

Years produced: 1964–1967
Made in: UK
Channels: 1
Preamp tubes: 1× ECC83

Tags: british, vintage, reverb, effects-unit.

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.