What tubes does the Ampeg V4 Vt22 1 use?

The Ampeg V4 Vt22 1 uses 4× 12AX7 preamp tubes and 4× 6L6 power tubes.

When was the Ampeg V4 Vt22 1 produced?

The Ampeg V4 Vt22 1 was produced 1970–1978.

Ampeg V4 Vt22 1 preset

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

Standard V4/VT22 schematic documenting the complete circuit shared between Ampeg's 100-watt bass head and guitar combo. Both amplifiers use identical power sections, with the VT22 adding reverb and tremolo circuits. The four-6L6 output stage delivers bold, American clean tone with excellent headroom.

Years produced: 1970–1978
Made in: USA
Wattage: 100W
Channels: 2
Preamp tubes: 4× 12AX7
Power tubes: 4× 6L6

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.