London City Lcfolderb preset

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

This London City LCFolderB document is a catalog or archive folder reference from the London City Amplifiers schematic collection. London City Amplifiers produced British EL34 tube amp heads for the UK professional musician market during the 1960s and 1970s. Specific model details are not determinable from this folder reference document.

• 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.