Watkins Westminster W10/T preset

verified · 87/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Westminster W10/T is a small Watkins valve amp of around 1960. Two inputs feed an ECC83 gain stage, and the other half of the ECC83 is a tremolo oscillator with Speed and an on/off footswitch. A Volume and a Tone control follow, then two ECL82 triode-pentodes: the triodes form the phase inverter and the pentodes run push-pull into the speaker, on an EZ80 rectifier. A later example on a second sheet uses the same circuit.

Tags: british, vintage, low-wattage.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.