What tubes does the Marshall Jmp Lead Tremolo 100W 1959T use?

The Marshall Jmp Lead Tremolo 100W 1959T uses 3× ECC83 (12AX7) preamp tubes and 4× EL34 power tubes.

When was the Marshall Jmp Lead Tremolo 100W 1959T produced?

The Marshall Jmp Lead Tremolo 100W 1959T was produced 1966–1981.

Marshall Jmp Lead Tremolo 100W 1959T preset

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

The Marshall 1959T Super Lead Tremolo is the less common tremolo-equipped variant of the legendary 1959 Super Lead 100W. In addition to the full Super Lead circuit, it adds a tube-driven optical tremolo effect — a feature more common in the earlier JTM era but carried forward for players who wanted onboard modulation without an external pedal. The tremolo circuit does not colour the dry tone, so the 1959T delivers identical plexi character to the standard 1959 while offering a lush, rhythmic pulse that suited the psychedelic and blues styles of the late 1960s.

Years produced: 1966–1981
Made in: UK
Wattage: 100W
Channels: 2
Preamp tubes: 3× ECC83 (12AX7)
Power tubes: 4× EL34

Tags: british, vintage, crunch, high-gain.

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.