What tubes does the Supro Thunder 1 Reverb - Normal use?

The Supro Thunder 1 Reverb - Normal uses 2× 12AX7 preamp tubes and 2× 6973 power tubes.

When was the Supro Thunder 1 Reverb - Normal produced?

The Supro Thunder 1 Reverb - Normal was produced 1964–1968.

Supro Thunder 1 Reverb - Normal preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Supro Thunder 1 Reverb is a mid-range Valco combo offering the signature Supro tone with the addition of onboard spring reverb for ambient depth. The 6973 power tubes provide the characteristic compressed, harmonically rich Supro sound, while the reverb adds a lush, splashy character typical of vintage American tank reverb circuits. This model represents the fully-featured mid-tier of the Supro range.

Years produced: 1964–1968
Made in: USA
Wattage: 14W
Channels: 2
Preamp tubes: 2× 12AX7
Power tubes: 2× 6973

Tags: american, vintage.

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.