What tubes does the Marshall Lead 12 12W 3005/5005 use?

The Marshall Lead 12 12W 3005/5005 uses solid-state preamp tubes and solid-state power tubes.

When was the Marshall Lead 12 12W 3005/5005 produced?

The Marshall Lead 12 12W 3005/5005 was produced 1983–1991.

Marshall Lead 12 12W 3005/5005 preset

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

The Marshall Lead 12 was a 12W solid-state combo introduced in the early 1980s, aimed at practice and home use with a circuit designed to approximate the character of Marshall's valve amps at a fraction of the cost. Despite its solid-state design, its preamp voicing was well-regarded for its price class.

Years produced: 1983–1991
Made in: UK
Wattage: 12W
Channels: 2
Preamp tubes: solid-state
Power tubes: solid-state

Tags: solid-state, practice, 80s.

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.