Valco Oahu Lapsteel-Amp 345-K - Normal preset

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

The Oahu Lapsteel-Amp 345-K is a Valco-manufactured amplifier produced for the Oahu Publishing Company, one of the many OEM relationships Valco maintained with music education and catalog companies. Built for lap steel guitar instruction, it features the warm, clean tone needed for the clear articulation of Hawaiian-style playing. The Oahu brand was associated with mail-order lap steel instruction kits, and this amp was sold as part of complete starter packages.

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.