What tubes does the Valco Model 22 use?

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

When was the Valco Model 22 produced?

The Valco Model 22 was produced 1950s.

Valco Model 22 preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Valco Model 22 is a small single-ended combo from the Chicago manufacturer, representing the entry-level tier of Valco's product offerings. Built around a single 6V6 output tube, it produces a warm, naturally compressed tone with strong even-order harmonics that has made these small amps appealing to blues and Americana players. The Model 22's simple circuit is also a popular starting point for DIY builders.

Years produced: 1950s
Made in: USA
Wattage: 5W
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.