Kay 507 - Normal preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Kay 507 is a vintage tube guitar amplifier from the Kay Musical Instrument Company of Chicago. Part of Kay's affordable student line, these amps featured simple circuits aimed at beginner guitarists. Their vintage tube tone and low-wattage design have given them a second life as recording and practice amps.

• Years produced: 1955–1965
• Made in: USA
• Channels: 1

Tags: american, 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.