MATRIXSYNTH: Vintage Electro-Harmonix EH 0400 Mini-Synthesizer

Tuesday, February 21, 2017

Vintage Electro-Harmonix EH 0400 Mini-Synthesizer


via this auction

"For sale is one of EH's coolest & rarest products - the EH Mini-synth, made around 1980. This thing's a tiny analog synth that's powered by (2) 9v batteries, or AC adapter. It's got a built in speaker and sounds AMAZING! Electro-Harmonix makes rock’n’roll effects & this unit is true-to-form. It’s a vintage rock’n’roll synth.

The EH-0400 has a 25 note membrane keyboard (instead of actual keys) & a built-in speaker. It also has 1/4″ jack to plug into an amp. It features one analog VCO with a pulse waveform, octave divider, and LFO for Pulse-Width-Modulation. The filters and the phasor make for loads of tweaking fun, & all of the controls/features work. The Mini-Synth can get ornery with lack of use, since dust in the sliders & touch-sensitive membrane can make it a bit scratchy. But a bit of contact cleaner attention will keep it going for years. All of the notes play; I had fun messing with it, & I’m not even a keyboard player (strictly guitar here!).

Cosmetically, this EH-0400 is in nice condition for being 35+ years-old, with nearly all of paint still on the keyboard & all of the colored tips on the sliders. Included is a new power source, already set on the proper polarity (+ on the tip of the plug) & voltages."

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