Kay 771 preset

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

The Kay 771 is a small solid-state guitar amp. Three inputs feed a 2N3711 transistor stage, then volume and tone controls before a second 2N3711 stage. A 2N2926 driver with diode bias and a bias adjustment feeds a quasi-complementary output stage of 2N3704 and 2N3402 drivers with 40310 power transistors, coupled to an 8-ohm speaker through a large capacitor from a single rail. The power supply is not shown on this drawing.

• Made in: USA
• Channels: 1

Tags: american, vintage, solid-state.

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.