London City Lcpl1978 preset

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

The London City LCPL1978 represents a 1978 production London City amplifier, from the UK manufacturer's mid-to-late 1970s lineup. London City built tube amplifiers for the British professional musician market, drawing on the EL34-based Marshall-tradition British circuit design. This late-1970s production captures the final era of London City's tube amp output before solid-state designs became dominant.

• Years produced: 1978
• Made in: UK

Tags: british, vintage.

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.