Teisco Checkmate 18 preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Teisco Checkmate 18 is a vintage Japanese guitar amplifier from Teisco, the Tokyo-based instrument and electronics manufacturer that flooded the American market with affordable guitars and amps through Sears and other retailers in the 1960s. The Checkmate series was Teisco's main amplifier line, featuring solid-state and tube designs at various wattages. These amps are now collected for their funky 1960s Japanese aesthetic and lo-fi tonal character.

• Years produced: 1965–1972
• Made in: Japan
• Wattage: 18W
• Channels: 2

Tags: 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.