What tubes does the Ampeg J-12-B Jet (6V6 version) - Normal use?

The Ampeg J-12-B Jet (6V6 version) - Normal uses 2× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Ampeg J-12-B Jet (6V6 version) - Normal produced?

The Ampeg J-12-B Jet (6V6 version) - Normal was produced 1960–1964.

Ampeg J-12-B Jet (6V6 version) - Normal preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Ampeg J-12B Jet was a further refined variant of the Jet series compact guitar combo. The B suffix indicates circuit updates made during the Jet series' ongoing development through the early 1960s. Retaining the compact size, 12-inch speaker, and 6V6 output tubes of the original Jet, the J-12B offered the same sweet, clean American guitar tone with incremental improvements to the circuit and feature set.

Years produced: 1960–1964
Made in: USA
Wattage: 12W
Channels: 2
Preamp tubes: 2× 12AX7
Power tubes: 2× 6V6

Tags: american, vintage, clean.

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.