Kay 610 - Channel 1 preset

Verified · 86/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Kay 610 is a two-channel tube combo with three inputs per channel. Each channel runs half a 6EU7 into a pentode stage (7199 on Ch1, 5879 on Ch2); the channels mix at the 7199 triode and a 6EU7 cathodyne drives a cathode-biased push-pull pair of 7027As from a 5U4 rectifier. A 6AU6 oscillator provides tremolo with an intensity control.

• Made in: USA
• Wattage: 30W
• Channels: 2
• Preamp tubes: 2× 6EU7, 1× 7199, 1× 5879, 1× 6AU6
• Power tubes: 2× 7027A

Tags: american, vintage, tremolo, two-channel.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.