What tubes does the Guild Masteramp 1959 use?

The Guild Masteramp 1959 uses 12AX7 preamp tubes and 6V6 power tubes.

When was the Guild Masteramp 1959 produced?

The Guild Masteramp 1959 was produced 1959–1962.

Guild Masteramp 1959 preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Guild Masteramp of 1959 is an early Guild amplifier representing the company's entry into the guitar amplifier market shortly after its founding in New York. It used conventional tube circuitry of the period, providing clean power suited to jazz and popular music styles of the late 1950s. The Masteramp is a historically significant piece as one of Guild's earliest efforts to build an integrated guitar-and-amplifier brand identity.

Years produced: 1959–1962
Made in: US
Wattage: 20W
Channels: 2
Preamp tubes: 12AX7
Power tubes: 6V6

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.