What tubes does the Hiwatt Dr 201 203 Output use?

The Hiwatt Dr 201 203 Output uses 4× ECC83 preamp tubes and 8× EL34 power tubes.

When was the Hiwatt Dr 201 203 Output produced?

The Hiwatt Dr 201 203 Output was produced 1970s.

Hiwatt Dr 201 203 Output preset

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

Output stage schematic for the Hiwatt DR201/DR203 200-watt models. Eight EL34 power tubes in a massively headroom-rich push-pull configuration deliver the Hiwatt clean tone at concert-filling volume.

Years produced: 1970s
Made in: UK
Wattage: 200W
Channels: 2
Preamp tubes: 4× ECC83
Power tubes: 8× EL34

Tags: british, clean, vintage, high-wattage, sub-circuit.

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.