What tubes does the Marshall Jtm30 30W Jtm310 use?

The Marshall Jtm30 30W Jtm310 uses 3× ECC83 (12AX7) preamp tubes and 2× EL34 power tubes.

When was the Marshall Jtm30 30W Jtm310 produced?

The Marshall Jtm30 30W Jtm310 was produced 1994–1997.

Marshall Jtm30 30W Jtm310 preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Marshall JTM30 (model JTM310 as a combo) was a 1990s reintroduction of the JTM name applied to a modern two-channel format rather than a vintage circuit recreation. Featuring a clean channel and a gain channel with separate EQ sections, it was aimed at players who wanted vintage Marshall aesthetics with contemporary versatility. The 30W power rating and EL34 output tubes give it a usably dynamic feel, and the JTM name evokes the original 1962 origins even though the circuit is firmly of its era. It found favour with gigging musicians who needed a reliable, mid-sized valve head.

Years produced: 1994–1997
Made in: UK
Wattage: 30W
Channels: 2
Preamp tubes: 3× ECC83 (12AX7)
Power tubes: 2× EL34

Tags: british, crunch.

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.