What tubes does the Epiphone EA-28RVT Pathfinder use?

The Epiphone EA-28RVT Pathfinder uses 3× 6EU7, 1× 6C4 preamp tubes and 2× 6V6 power tubes.

When was the Epiphone EA-28RVT Pathfinder produced?

The Epiphone EA-28RVT Pathfinder was produced 1961–1965.

Epiphone EA-28RVT Pathfinder preset

verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The EA-28RVT Pathfinder is a 1960s Epiphone tube combo with a 12-inch speaker. It is a single-channel amp with two inputs feeding one preamp, with loudness, tone and reverb controls. A 6C4 drives the spring reverb and a 6EU7 recovers it, and a 6EU7 tremolo oscillator with depth, frequency and a footswitch modulates the cathodes of the push-pull 6V6 pair. A 5Y3 valve rectifier supplies the amp, and there is a monitor output jack.

Years produced: 1961–1965
Made in: USA
Channels: 1
Preamp tubes: 3× 6EU7, 1× 6C4
Power tubes: 2× 6V6

Tags: american, vintage, 6v6, reverb, tremolo.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.