What tubes does the Hiwatt 50W Sa212 use?

The Hiwatt 50W Sa212 uses 4× ECC83 (12AX7) preamp tubes and 2× EL34 power tubes.

When was the Hiwatt 50W Sa212 produced?

The Hiwatt 50W Sa212 was produced 1971–1981.

Hiwatt 50W Sa212 preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Hiwatt SA212 pairs the DR504's 50-watt EL34 circuit with two 12-inch speakers, offering a wider stereo-like spread and more even dispersion than the single-speaker SA112. The dual-driver configuration gives the amp a fuller, more dimensional sound while preserving the clarity and headroom that define Hiwatt's character. It was well suited to medium-sized venues where a combo was preferable to a half-stack but the player still needed the authority and projection of a genuine Hiwatt amplifier. Construction standards match the rest of the handwired Hiwatt range.

Years produced: 1971–1981
Made in: UK
Wattage: 50W
Channels: 2
Preamp tubes: 4× ECC83 (12AX7)
Power tubes: 2× EL34

Tags: british, clean, 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.