Electro-Harmonix Frequency Analyzer Ring Modulator, model EH-5000. Big classic silver chassis V2, made in NYC. BLEND, FINE, and SHIFT controls with a FILTER ON switch, plus effect out / direct out / input jacks and the footswitch bypass.

Modified with a CV input so you can control the ring mod frequency externally from a synth, modular rig, or any CV source. This makes it a whole different animal and substantially more useful for synth/modular players than a stock unit.

Looks beat but works great, used this in a working environment for years. Scratches and scuffs all over the silver chassis, sharpie, tape residue across the front where a label used to sit, gaff tape on the top surface. Fully functional.

Comes with the original 40V EHX power supply and the original box.

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