What tubes does the Gretsch 6155/6156 - Normal use?

The Gretsch 6155/6156 - Normal uses 2× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Gretsch 6155/6156 - Normal produced?

The Gretsch 6155/6156 - Normal was produced 1955–1963.

Gretsch 6155/6156 - Normal preset

Verified · 84/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Gretsch 6155 and 6156 were compact tube combos built during the golden era of American guitar amplification, sharing Valco/National roots. They produced a bright, chimey clean tone that paired naturally with Gretsch hollow-body guitars.

Years produced: 1955–1963
Made in: USA
Wattage: 18W
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.