Vintage Mini-Korg 700. This is the single oscillator version and is 120v. Speaking of the oscillator, I replaced it. I also recapped much of the synth and replaced a few bad transistors. Even rebuilt a broken key.

You can see the whole repair story on my blog. Search for "Vintage MiniKorg 700 Repairs – Erich Izdepski" since Reverb won't allow a link! There are two posts about this exact synth.

According to Reverb's guide I should call this Fair because of one problem described below. Otherwise because of all the work I put into it, it is much better than that.

There is one flaw, but not real limiting. If you raise the pitch above 440Hz the highest key will either play for a split second or not at all. This stops the upper half of the keyboard from playing until you hit the middle F (or lower) which resets everything. I spent quite a bit of time trying to figure this out but could not. Too much vibrato depth will also cause this to happen. In the video you can see me playing the high C regularly with no trouble.