Valco 510-80 - Channel 1 preset

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

The Valco Model 510-80 is a two-channel valve combo of the early 1960s. Each channel has two inputs, its own 6EU7 gain stages, bass and treble controls, a three-way Normal/Treble/Brilliant tone switch and its own volume. A 6EU7 gain stage and phase inverter drives a cathode-biased push-pull pair of 6L6GCs into two speakers, and another 6EU7 runs a tremolo with speed, intensity and a footswitch. A 5U4 rectifier with a standby switch supplies the HT.

Tags: american, vintage, 6v6, two-channel.

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.