London City Lcfoldera preset

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

This London City LCFolderA document is a catalog or archive folder reference from the London City Amplifiers schematic collection, rather than a specific amplifier model. London City Amplifiers was a UK manufacturer active in the 1960s–1970s producing EL34-based tube amp heads for professional musicians. Specific model and circuit details are not determinable from the folder reference alone.

• 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.