What tubes does the Selmer Zodiac Twin 30 - Normal use?

The Selmer Zodiac Twin 30 - Normal uses 3× ECC83 preamp tubes and 2× EL34 power tubes.

When was the Selmer Zodiac Twin 30 - Normal produced?

The Selmer Zodiac Twin 30 - Normal was produced 1963–1968.

Selmer Zodiac Twin 30 - Normal preset

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

The Selmer Zodiac Twin 30 is a 30-watt British tube amplifier from Selmer London, a company that distributed various musical instruments and amplifiers in the UK during the 1960s. The Zodiac series offered two-channel operation with EL34 power tubes, delivering the punchy British character popular during the beat group era. Selmer amps are historically significant as contemporaries of Vox and Marshall during the British Invasion period.

Years produced: 1963–1968
Made in: UK
Wattage: 30W
Channels: 2
Preamp tubes: 3× ECC83
Power tubes: 2× EL34

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.