What tubes does the Epiphone EA-8P use?

The Epiphone EA-8P uses 3× 6EU7, 1× 12AU7 preamp tubes and 2× 7591 power tubes.

When was the Epiphone EA-8P produced?

The Epiphone EA-8P was produced 1962–1966.

Epiphone EA-8P preset

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

The EA-8P is the larger 1960s companion amp for the Epiphone Professional guitar. Its volume, tone, four-position tone selector, reverb level and tremolo depth and frequency are on the guitar and reach the amp through a multi-conductor cable into a single channel. 6EU7 and 12AU7 stages handle the preamp, spring reverb and tremolo, driving a push-pull pair of 7591 output tubes on about 410 V with a GZ34 rectifier and choke. It has monitor and extension speaker jacks.

Years produced: 1962–1966
Made in: USA
Wattage: 25W
Channels: 1
Preamp tubes: 3× 6EU7, 1× 12AU7
Power tubes: 2× 7591

Tags: american, vintage, clean, reverb, tremolo, mid-wattage.

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.