What tubes does the Valco Gretsch6151 use?

The Valco Gretsch6151 uses 2× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Valco Gretsch6151 produced?

The Valco Gretsch6151 was produced 1959–1964.

Valco Gretsch6151 preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Gretsch 6151 was a mid-powered Valco-built combo in the Gretsch amplifier lineup, offering more output power and controls than the smaller Gretsch/Valco models. Its 6V6 or 6L6 output stage delivered the balanced, warm American clean tone common to Valco's mid-tier designs. The 6151 appears in catalogs alongside other Gretsch/Valco collaborations from the late 1950s and early 1960s.

Years produced: 1959–1964
Made in: USA
Channels: 2
Preamp tubes: 2× 12AX7
Power tubes: 2× 6V6

Tags: american.

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.