What tubes does the Valco National Twin Tone 1210 - Normal use?

The Valco National Twin Tone 1210 - Normal uses 2× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Valco National Twin Tone 1210 - Normal produced?

The Valco National Twin Tone 1210 - Normal was produced 1958.

Valco National Twin Tone 1210 - Normal preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The National Twin Tone 1210 is a 1958 Valco-manufactured combo sold under the National brand, featuring two channels for clean and boosted tones. National was one of Valco's primary retail brands alongside Supro, sharing circuit designs but differentiated by cosmetic styling and retail channel. The late-1950s Valco design captures the warm, natural compression of push-pull 6V6 circuitry at its peak refinement.

Years produced: 1958
Made in: USA
Wattage: 15W
Channels: 2
Preamp tubes: 2× 12AX7
Power tubes: 2× 6V6

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.