Waldorf Q+ Ruby Red

via this auction

“Studio use only. This version has the analog filters.

Comes with the memory card.

Fully functional but end-cheek was dinged
when shipped to us.

Recently had all its encoders replaced a few years ago.”

Innisfree Picasso CRT Image Synthesizer

via this auction

For those into video processing and video synthesis. Not much info in the listing:

“Innisfree Picasso CRT Image Synthesizer. Condition is Used.
Seems to work however cannot test full functionality and is sold as-is.”

1978 ARP OMNI-2 Vintage Analog String Machine

Published on Feb 15, 2019 keyboard resource

via this auction

“1978 ARP OMNI-2 Vintage Analog String Machine & Synthesizer + Hybrid Hard Case

LFO slider is intermittent. See video. Otherwise works good.

This is the more desirable second version. Metal case. Built like a tank.

Includes Hybrid hard case, original Service Manual and a color print of the Owner’s Manual.”

Roland JD-800

via this auction

“Early 90s Roland synths are notorious for having a horrible red glue under the Key weights, which years later started to leak and cause sticky keys and other problems. I bought this synth with that problem fixed, most of the red glue was replaced or sealed away by new hot glue. As you can see from the pictures the glue hasn’t leaked and is under control, most JD800 auctions

Jomox Sunsyn MK1 Desktop Synthesizer

via this auction

“Undoubtedly one of the fattest sounding synths we’ve heard, and it’s loaded with versatility. There’s a reason why Aphex Twin decided to use not just one, but two of these to produce Syro.”

Freeman Sting Symphonizer

via this auction

“Amazing sounding vintage string synthesizer. Very rare. It has 25 oscillators with organ style divider circuits to create a full and enveloping symphonic sound, especially with the Ensemble effect engaged and the internal spring reverb cranked up. Very clean inside/out and fully functional. Some of the keys need to be leveled, but they do work. No lid”

Pic of the inside below

Casio Casiotone MT-400V Analog Synthesizer Keyboard With Speakers, Power Cord, & Case

via this auction

Roland Juno-6 Analog Synthesizer

via this auction

Vermona Synthesizer

via this auction