What tubes does the Supro 1946 Steel Guitar Amp - Main use?

The Supro 1946 Steel Guitar Amp - Main uses 1x 6V6 power tubes.

When was the Supro 1946 Steel Guitar Amp - Main produced?

The Supro 1946 Steel Guitar Amp - Main was produced 1946–1950.

Supro 1946 Steel Guitar Amp - Main preset

Close · 78/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Supro 1946 is a small tube combo from Valco's immediate postwar period, reflecting the early efforts of the Chicago-based manufacturer to bring electric guitar amplification to mass markets. Its simple single-ended or small push-pull circuit delivers a raw, compressed, early rock and blues tone that has become highly sought after by contemporary slide guitarists and recording engineers. These units are foundational artifacts of American amplifier manufacturing.

Years produced: 1946–1950
Made in: USA
Wattage: 5W
Channels: 1
Power tubes: 1x 6V6

Tags: american.

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.