Valco 510-11 preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Valco 510-11 (Spectator) is a very simple early-1950s-style Valco combo. Two instrument jacks and a microphone jack mix into one 6SL7 triode, followed by Volume and Treble controls. The second half of the 6SL7 drives a single-ended 6V6-GT, with a 5Y3-GT rectifier. With one signal path and very little in the way, it gives a warm, easily overdriven small-amp sound.

• Made in: USA
• Wattage: 5W
• Channels: 1
• Preamp tubes: 1× 6SL7
• Power tubes: 1× 6V6GT

Tags: american, vintage, 6v6, low-wattage, class-a, practice.

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.