What tubes does the Hiwatt 200W Sta200 use?

The Hiwatt 200W Sta200 uses 4× ECC83 (12AX7) preamp tubes and 8× EL34 power tubes.

When was the Hiwatt 200W Sta200 produced?

The Hiwatt 200W Sta200 was produced 1970–1980.

Hiwatt 200W Sta200 preset

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

The Hiwatt STA200 is a 200-watt stage amplifier that bridges the gap between the guitar-oriented DR201 and a pure power amplifier, incorporating sufficient preamplification to be used with microphones and instruments alike. Built during Hiwatt's classic handwired era under Dave Reeves' supervision, it represents the company's commitment to no-compromise construction at every power level. The STA200's combination of immense clean headroom and articulate response made it a reliable choice for large-venue touring throughout the 1970s British and international rock circuit.

Years produced: 1970–1980
Made in: UK
Wattage: 200W
Channels: 2
Preamp tubes: 4× ECC83 (12AX7)
Power tubes: 8× 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.