What tubes does the Ampeg V3 Power Amp - Main use?

The Ampeg V3 Power Amp - Main uses 2× 12AU7 preamp tubes and 4× 6L6 power tubes.

When was the Ampeg V3 Power Amp - Main produced?

The Ampeg V3 Power Amp - Main was produced 1971–1978.

Ampeg V3 Power Amp - Main preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The V3 Power Amp schematic documents the output stage of Ampeg's mid-power V-series PA tube amplifier. Four 6L6 output tubes deliver 60 watts of clean power. The driver stage uses 12AU7 tubes for low-distortion drive of the output bank. An essential reference for the V-3's power amplifier section.

Years produced: 1971–1978
Made in: USA
Wattage: 60W
Channels: 1
Preamp tubes: 2× 12AU7
Power tubes: 4× 6L6

Tags: american, vintage, mid-wattage, pa.

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.