National Tremo-Tone 1224 preset

Verified · 91/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The National Tremo-Tone 1224 is a Valco-built combo with built-in tremolo and a footswitch. Two instrument inputs and a brighter Treble input feed a 6SQ7 gain stage, then a Tone control and a Volume. A 6SC7 twin triode works as the phase inverter driving two 6V6GT output valves in push-pull from a 5Y3GT rectifier, into two speakers. A second 6SQ7 is the tremolo oscillator, with a Trem depth control and footswitch.

• Made in: USA
• Wattage: 14W
• Channels: 1
• Preamp tubes: 2× 6SQ7, 1× 6SC7
• Power tubes: 2× 6V6GT

Tags: american, vintage, tremolo, 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).

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