Ampeg V2 V4 Vt22 Vt40 1976 preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The 1976 V2/V4/VT22/VT40 schematic documents the circuit as produced in the mid-1970s. By 1976, the design had been refined through several revisions to address reliability issues and optimize tone. This version represents the mid-production iteration of Ampeg's most successful 100-watt amplifier family.

Tags: american, vintage, mid-wattage.

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.