What tubes does the Kay Kay703C 2Nd use?

The Kay Kay703C 2Nd uses 12AX7 preamp tubes and 6V6, 6V6 power tubes.

When was the Kay Kay703C 2Nd produced?

The Kay Kay703C 2Nd was produced 1964–1967.

Kay Kay703C 2Nd preset

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

The Kay 703C (second version) is a later production run of the 703C with updated components and potentially revised cosmetics, consistent with Kay's practice of incremental revision without model renaming. The circuit and tonal character are essentially unchanged from the first 703C version, retaining the compact, warm, natural-saturation character that defines the 703 family. As with other Kay 703 variants, this amp is appreciated by blues and garage players for its accessible overdrive and period authenticity. The second-version 703C is distinguished by component date codes and chassis revision marks.

Years produced: 1964–1967
Made in: USA
Wattage: 12W
Channels: 1
Preamp tubes: 12AX7
Power tubes: 6V6, 6V6

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.