What tubes does the Marshall Keyboard 12 12W 5301 5302 use?

The Marshall Keyboard 12 12W 5301 5302 uses 1× ECC83 (12AX7) preamp tubes and 2× EL84 power tubes.

When was the Marshall Keyboard 12 12W 5301 5302 produced?

The Marshall Keyboard 12 12W 5301 5302 was produced 1975–1981.

Marshall Keyboard 12 12W 5301 5302 preset

Close · 65/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Marshall Keyboard 12 (models 5301 and 5302) was a compact 12W amplifier designed for electronic keyboards and organs, featuring a flat-response voicing intended to faithfully reproduce keyboard tones without the midrange colouration characteristic of Marshall's guitar-focused designs. Powered by a pair of EL84 output valves, it produces a clean, chimey sound with minimal distortion at normal playing levels. While not a mainstream guitar amplifier, its EL84 power stage and small format have attracted boutique guitar players seeking a different flavour of valve tone.

Years produced: 1975–1981
Made in: UK
Wattage: 12W
Channels: 1
Preamp tubes: 1× ECC83 (12AX7)
Power tubes: 2× EL84

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.