What tubes does the Orange OTR-80 / OTR-120 use?

The Orange OTR-80 / OTR-120 uses 2× ECC83 preamp tubes and 4× EL34 power tubes.

Who famously used the Orange OTR-80 / OTR-120?

Noel Gallagher are among the notable players associated with the Orange OTR-80 / OTR-120.

Orange OTR-80 / OTR-120 preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Orange OTR-120 is a late-1990s single-channel valve head built on the Graphic-era circuit. Two inputs feed an ECC83 stage, Orange's bass and treble stack ahead of the Volume, a second gain stage and a five-position FAC voicing switch. An echo send/return and slave out follow, then an ECC83 stage with a Presence control in the feedback loop and a split-load inverter with a dual-gang Master, driving four fixed-bias EL34s. The OTR-80 shares the circuit at lower power.

Introduced: 1997
Made in: UK
Wattage: 120W
Channels: 1
Preamp tubes: 2× ECC83
Power tubes: 4× EL34

Known for: Noel Gallagher.

Tags: british, el34, crunch, high-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.