Yamaha G100-212 Series I - Channel 2 preset

Close · 68/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Yamaha G100-212 Series I is a 100-watt solid-state guitar combo from Yamaha's early G-series line, housed in a 2x12 cabinet and offering clean and lead channels. Yamaha's reputation for quality electronics translated into a reliable and well-built amp for working guitarists.

• Years produced: 1977–1984
• Made in: Japan
• Wattage: 100W
• Channels: 2

Tags: modern, solid-state, clean.

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.