What tubes does the Ampeg Super Echo Twin ET-2B - Channel Two use?

The Ampeg Super Echo Twin ET-2B - Channel Two uses 4× 12AX7 preamp tubes and 2× 6L6 power tubes.

When was the Ampeg Super Echo Twin ET-2B - Channel Two produced?

The Ampeg Super Echo Twin ET-2B - Channel Two was produced 1964–1968.

Ampeg Super Echo Twin ET-2B - Channel Two preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Ampeg ET-2B Super Echo Twin was an upgraded version of the Echo Twin concept, featuring a more capable built-in echo unit and additional power. The Super Echo Twin was designed for guitarists who wanted the best Ampeg had to offer in a guitar combo — clean, full American tube tone with the versatility of onboard echo. The ET-2B is a collector's piece today, combining vintage Ampeg build quality with the appeal of a sophisticated onboard effects chain.

Years produced: 1964–1968
Made in: USA
Wattage: 35W
Channels: 2
Preamp tubes: 4× 12AX7
Power tubes: 2× 6L6

Tags: american, vintage, clean.

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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.