What tubes does the WEM Er15 Head 15W use?

The WEM Er15 Head 15W uses 3x ECC83 preamp tubes and 2x EL84 power tubes.

When was the WEM Er15 Head 15W produced?

The WEM Er15 Head 15W was produced 1964–1969.

WEM Er15 Head 15W preset

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

The WEM ER-15 is a 15-watt tube head from Watkins Electric Music's 1960s range, featuring reverb as a standard feature — one of the earlier British amp designs to include onboard spring reverb. Its modest wattage and warm tube tone made it popular for studio sessions where lower volume and tonal character were both important. The ER designation indicates the onboard reverb circuit.

Years produced: 1964–1969
Made in: UK
Wattage: 15W
Channels: 2
Preamp tubes: 3x ECC83
Power tubes: 2x EL84

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.