What tubes does the Valco National 1224 Tremo-Tone - Inst 1 use?

The Valco National 1224 Tremo-Tone - Inst 1 uses 2× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Valco National 1224 Tremo-Tone - Inst 1 produced?

The Valco National 1224 Tremo-Tone - Inst 1 was produced 1955–1960.

Valco National 1224 Tremo-Tone - Inst 1 preset

Verified · 83/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The National 1224 Tremo-Tone is a Valco-manufactured combo sold under the National brand featuring built-in tremolo, one of the first popular amplifier effects. The tremolo circuit produces the warm, pulsing modulation characteristic of 1950s American amplifier design, complementing the clean tube tone perfectly for country, rockabilly, and early rock and roll. The Tremo-Tone branding reflects the era's enthusiasm for built-in effects as a selling feature.

Years produced: 1955–1960
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.