What tubes does the Valco National 1215 - INST use?

The Valco National 1215 - INST uses 2× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Valco National 1215 - INST produced?

The Valco National 1215 - INST was produced 1950–1955.

Valco National 1215 - INST preset

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

The National 1215 is an early 1950s Valco-manufactured combo from the National brand, featuring MIC and instrument inputs for versatile amplification of guitars and vocals. Valco's National brand was positioned slightly above the Supro line in their marketing hierarchy, though the fundamental circuit designs were closely related. This early 1950s design captures Valco at the height of their original circuit development.

Years produced: 1950–1955
Made in: USA
Wattage: 10W
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.