What tubes does the London City DEA100 Early - Ch1 use?

The London City DEA100 Early - Ch1 uses 3× ECC83 preamp tubes and 4× EL34 power tubes.

When was the London City DEA100 Early - Ch1 produced?

The London City DEA100 Early - Ch1 was produced late 1960s–early 1970s.

London City DEA100 Early - Ch1 preset

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

The London City DEA100 Early represents the first iteration of London City's 100-watt DEA amplifier, predating the Mark V refinements and offering the original circuit design from the brand's early production period. London City entered the market during the British amp boom of the late 1960s, building EL34-based designs in the Marshall tradition for the UK professional market. These early models are particularly rare collector's pieces.

Years produced: late 1960s–early 1970s
Made in: UK
Wattage: 100W
Channels: 2
Preamp tubes: 3× ECC83
Power tubes: 4× EL34

Tags: british, vintage, crunch.

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.