What tubes does the Supro Supreme S6422TR use?

The Supro Supreme S6422TR uses 4× 12AX7 preamp tubes and 1× 6V6 power tubes.

When was the Supro Supreme S6422TR produced?

The Supro Supreme S6422TR was produced 1964–1965.

Supro Supreme S6422TR preset

Verified · 92/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Supro Supreme S6422TR (1964–65) is a 5-watt Valco combo, also sold as the Gretsch G6152 and Airline 62-9035. Four 12AX7s handle preamp, reverb drive, driver and tremolo oscillator duties around a single 6V6 in single-ended class A, with a 5Y3 rectifier, tone, volume, spring reverb and tremolo. It has been the basis for many boutique low-wattage clones.

Years produced: 1964–1965
Made in: USA
Wattage: 5W
Channels: 1
Preamp tubes: 4× 12AX7
Power tubes: 1× 6V6

Tags: american, vintage, 6v6, class-a, reverb, tremolo, low-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.