What tubes does the Harmony H200 use?

The Harmony H200 uses 12AX7 preamp tubes and 6V6 power tubes.

When was the Harmony H200 produced?

The Harmony H200 was produced 1958–1963.

Harmony H200 preset

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

The Harmony H200 is a small practice combo from the late 1950s to early 1960s using a simple single-ended tube circuit producing a modest, warm tone suited to home and beginning student use. It is representative of the most affordable end of Harmony's amplifier range and shares DNA with the company's catalog of student instruments. The circuit is extremely simple with minimal controls.

Years produced: 1958–1963
Made in: USA
Wattage: 5W
Channels: 1
Preamp tubes: 12AX7
Power tubes: 6V6

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.