What tubes does the Valco 22 use?

The Valco 22 uses 1× 12AX7 preamp tubes and 1× 6V6 power tubes.

When was the Valco 22 produced?

The Valco 22 was produced 1950–1956.

Valco 22 preset

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

The Valco model 22 was a small student-grade combo from the Chicago manufacturer that built amplifiers for numerous budget brands throughout the 1950s and 1960s. Its simple single-ended circuit produced the warm, slightly compressed tone typical of low-wattage American valve designs of the era. Like most early Valco designs, it featured a straightforward layout with minimal controls aimed at beginner players.

Years produced: 1950–1956
Made in: USA
Channels: 1
Preamp tubes: 1× 12AX7
Power tubes: 1× 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.