Airline GVC-9090A / GVC-9091A preset

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

The Airline GVC-9090A and GVC-9091A are small solid-state Montgomery Ward practice amps. Three inputs feed one Volume control and a three-transistor circuit: a 2N3711 input stage, a 2N408 driver and a single 40424 output transistor running single-ended into an output transformer and an 8-ohm speaker, with a Tone control across the output. The supply is a simple half-wave diode rectifier from the mains at about 150 volts.

• Made in: USA
• Channels: 1

Tags: american, solid-state, vintage, 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.