What tubes does the Epiphone EA-50 - Main use?

The Epiphone EA-50 - Main uses 3× 12AX7 preamp tubes and 2× 6BQ5 power tubes.

When was the Epiphone EA-50 - Main produced?

The Epiphone EA-50 - Main was produced 1961–1968.

Epiphone EA-50 - Main preset

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

The Epiphone EA-50 is a two-channel tube combo representing the Pacemaker line at its most fundamental, without the tremolo of the EA-50T variant. Built in Gibson's Kalamazoo factory, it delivers straightforward dual-channel tube amplification with the warm, smooth character that defines mid-century American combo amps.

Years produced: 1961–1968
Made in: USA
Wattage: 18W
Channels: 2
Preamp tubes: 3× 12AX7
Power tubes: 2× 6BQ5

Tags: vintage, clean, 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.