Korg MS-50

“If you’re looking, I’m sure you know what you’re looking at. This MS-50 is in excellent working order, fully serviced before I got it at Switch On Austin. Cosmetically in great shape as well. The only thing that doesn’t work is the little light in the voltmeter window.” Click here to visit listing on eBay

Korg MS-50

“The Korg MS-50 Expander Module is fully-patchable, keyboard-less, single VCO monophonic analog synthesizer. It uses Korg’s Hz/V type of CV & Gate for control with other synths like the MS-20. It has lots of knobs and offers more patchability & power than any other MS synth. Other features include a ring modulator, voltmeter and Sample & Hold. It was also designed to complement the SQ-10 sequencer. It has been used by The Chemical Brothers, among others. The MS-50 is a rare model within the MS series. It has internal circuits such as a divider and integrator not found on the MS-10/20, which supported even more complex ways of creating sound. The voltmeter on the upper right-hand side of the panel captured the hearts of many synth players. Of course, it could also be played on its own by using CV/Gate signals.

Worked fine the last time it was used, but hasn’t been turned on in a while or fully tested (has been kept in a climate-controlled environment), so selling “as is.” Includes manual and schematics.” Click here to visit listing on eBay

Korg MS-50

korgms50 “Up for auction is a very famous used vintage Korg MS-50 Analog Synthesizer 100V Early Japanese Version in Very Good to Excellent Condition. This MS-50 works well without any issues at all. It powers up and every function works. I don’t have an extra step down transformer but I don’t think it is a big issue to use it without. Cosmetically on the MS-50 is in very good to excellent condition with very minor scuffs on the top and scratches on the back. Overall, it’s in a very beautiful shape.” Click here to visit listing on eBay

Korg MS-50

m50 “Up for auction is a very famous used vintage Korg MS-50 Analog Synthesizer 100V Early Japanese Version in Very Good to Excellent Condition. This MS-50 works well without any issues at all. It powers up and every function works. I don’t have an extra step down transformer but I don’t think it is a big issue to use it without. Cosmetically on the MS-50 is in very good to excellent condition with very minor scuffs on the top and scratches on the back. Overall, it’s in very beautiful shape. Please check out all the pictures of the actual product. This is important for all the potential buyers who may be interested in this auction. Anyhow, I would like to be sure that this item will be securely packed prior to shipping to successful high bidder.” Click here to visit listing on eBay

Korg MS-50

korg_ms_50 “Here is a nice blast from the past! Up for auction today is a VINTAGE KORG MS-50 EXPANDER MODULE. I will try to be as explicit as possible in my explanation so you know what you are getting. This unit has been tested as best I know how. Pretty much everything works. I tested most of the different modules using patch cords and headphones. VCO, VCF, Modulation Generator, both Envelope Generators, both Adding Amplifiers, Voltage Supply, Voltmeter, Trigger switch, Audio Amplifier, Headphone Amplifier and Noise Generators all have been tested and work. The channel two level control on the adding amplifier was a little scratchy. The Integrator, VCA’s, Sample and Hold, Inverter and Ring Modulator were not tested because I did not know how and ran out of patch cables anyway!, This unit is about a 7.5 out of 10 cosmetically. There is some very minor corrosion in a few small spots on the case. I have tried to include close up pictures so you can see all this. Two of the little rubber plugs that cover up the adjustment holes are missing. I removed all the silver nuts and washers for the patch ports and shined them up. Actually this is not a bad looking unit. This Korg is in much better shape than the MS-10 I just sold here on eBay. I think I have covered everything so you know exactly what you are getting. I am very picky about my descriptions. Pictures are of the actual unit for sale.” Click here to visit listing on eBay

Korg MS50

used ms50 ” For auction is my Korg MS50. The synth is fully functional, and besides a missing jack nut and some tape residue on the top of the unit it’s in great cosmetic shape too. The rubber feet were removed when I purchased this so I’m including a replacement set. ” Click here to visit listing on eBay

Korg MS-20 and Korg MS-50


I’ve owned the MS20 for over 20 years – and the MS50 for some 10 years or so – Both were serviced last year when I first thought of selling.
Then I changed my mind – and kept hold of them for another year… difficult to part with!

They are a great combination – the MS50 is a rare beast and comes into its own when patched with an MS20. Some have mentioned online that the pairing is similar in function to an ARP2600 (except for the spring reverb and built in speakers) although in my experience both have their own very unique sound.

only problems that I have encountered is the back light of the MS50’s volt meter has gone – but all works as expected, and when I bought my MS20 there was a kink in the underside (just below the middle of the keyboard) of the metal body (shown in picture). The later has absolutely no effect on keyboard operation – or any other aspect of the synth… I did intend on straightening it out – but as they say ‘if it aint broke…’

am selling due to my focus into the eurorack modular world.

I’ll throw in a bunch of 1/4″ patch cables – I also have photo copies of the original manuals which will be included.

I’m listing this as pickup only – as have no intention risking any damage in shipping – and insurance will be high.” Click here to visit listing on eBay