What tubes does the Supro 1950-32230 - Normal use?

The Supro 1950-32230 - Normal uses 1× 12AX7 preamp tubes and 1× 6V6 power tubes.

When was the Supro 1950-32230 - Normal produced?

The Supro 1950-32230 - Normal was produced 1950.

Supro 1950-32230 - Normal preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

This early 1950s Supro amplifier documents Valco's product line at a formative period in American amplifier manufacturing, featuring the simple circuits and modest power output typical of student and professional lap steel amplifiers of the era. The 6V6 output tube provides a warm, naturally compressing tone well-suited to the clean chord work of the period. Schematics from this era are important historical documents for understanding early American amp development.

Years produced: 1950
Made in: USA
Wattage: 4W
Channels: 1
Preamp tubes: 1× 12AX7
Power tubes: 1× 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.