What tubes does the Gibson GA-15RVT Explorer use?

The Gibson GA-15RVT Explorer uses 2× 6EU7, 1× 12AU7 preamp tubes and 2× 6BQ5 power tubes.

When was the Gibson GA-15RVT Explorer produced?

The Gibson GA-15RVT Explorer was produced 1965–1967.

Gibson GA-15RVT Explorer preset

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

The GA-15RVT Explorer is a single-channel 1960s Gibson combo with spring reverb and footswitchable tremolo, plus bass, treble and loudness controls. Three inputs feed a 6EU7 stage and the tone network, then a second 6EU7 stage drives an interstage transformer that splits the phase for a cathode-biased push-pull pair of 6BQ5 (EL84) valves into a 10-inch speaker. The other 6EU7 halves drive the reverb and the tremolo, and a 12AU7 handles reverb recovery.

Years produced: 1965–1967
Made in: USA
Channels: 1
Preamp tubes: 2× 6EU7, 1× 12AU7
Power tubes: 2× 6BQ5

Tags: american, vintage, clean, reverb, tremolo, el84.

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.