What tubes does the Valco 510-11 Spectator - INST use?

The Valco 510-11 Spectator - INST uses 1× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Valco 510-11 Spectator - INST produced?

The Valco 510-11 Spectator - INST was produced 1950–1955.

Valco 510-11 Spectator - INST preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Valco 510-11 Spectator is an early member of the highly successful 510 circuit family, designed for student and amateur musicians under the Supro brand. The Spectator model name was used across multiple configurations of the 510 circuit, with instrument and mic inputs serving the dual-purpose needs of small venue performers. The 510-11's simple, musical circuit has made it a favorite among vintage amp enthusiasts.

Years produced: 1950–1955
Made in: USA
Wattage: 10W
Channels: 2
Preamp tubes: 1× 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.