MATRIXSYNTH

Saturday, November 08, 2025

R.A. Moog Troubador Theremin #1 a/s

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via this Vemia listing

Click the auction link on top when you get there for additional listings.

"***notice that the theremin needs service*** Up for sale is my R.A. Moog Co. Troubador Theremin with serial number 1001. Which means it's the first one made, probably by Bob Moog himself on 3 October 1969. Unfortunately it's not working. One of the coils is broken and the power lead needs work. It's sold as-is, untested. I've been looking years for a second example to fix this one, without result so far.. Optically there are signs of use, some screws are missing, some wear and tear at the front panel and bottom plate."

Pic of the inside below.

Technosaurus Selector

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via this Vemia listing

Click the auction link on top when you get there for additional listings.

"3 oscillator modular synthesizer with a multimode filter and super snappy and envelopes also has a ring modulator and a built in midi interface. All patch points are located at the bottom below the module leaving room for an uncluttered access to the knobs. In very nice condition."

Simmons SDS3 with pads- stunning instrument

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via this Vemia listing

Click the auction link on top when you get there for additional listings.

"I was always a little surprised by how valuable these Simmons SDS3s are, and put it down to their extreme rarity and the wow factor of owning something from the Musicaid Simmons era. But I've been listening to what this machine can do, and I begin to see there is so much more. It is simply a genius design. The variety of sounds is stunning - it's almost like a fully-featured four-voice synth as well as a great drum synth. FM is brilliant, and the whole design (using permanently running ladder filters for the oscillators?) is mind-blowing.

This example, serial number 0072, is in perfect working order, after literally days of restoration by nLi. Cosmetically, the SDS3 itself looks great. The knobs are not original but look pretty nice, there are some small scrapes and marks on the panel and wood endcheeks, but overall it could be 8/10 especially given its age. The pads are very well used, but have been thoroughly restored and are totally functional and original.

To get more info about the SDS3, check out where Alex Ball has done his usual excellent rundown:" [posted here]

Isla Instruments Rhythm Imposer A/S



via this Vemia listing

Click the auction link on top when you get there for additional listings.

"This is a heavily modified and circuit bent Alesis HR 16. The basic idea is that you can change the eproms and then mangle the sounds into oblivion by way of the knobs and switches which create all sorts of unpredictable and fairly brutal noises. The result can be anything from utter industrial magic to unusable garbage. Comes with a number of eproms incl. Korg, Linn DMX, Roland The machine is very unstable. Sometimes it works sometimes it just doesn’t. I have no idea how to make it more stable and when it comes on and produces sound, it’s absolutely random and unpredictable. The best way to think about this is as a sample source in that you have a tape running all the time and then pick and choose the best noises that come out of it. The great thing is that you would never ever come up with these sounds if you were to program them in a targeted and controlled manner. But on the other hand, it’s of course frustrating when it doesn’t come on at all. The starting bid is set accordingly. The buyer may wish to have a technician take a look at it."

ACIDLAB MIAMI 808 CLONE

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via this Vemia listing

Click the auction link on top when you get there for additional listings.

"Rare 808 drum machine clone https://www.soundonsound.com/reviews/acidlab-miami An analogue clone of Roland’s TR808 for much less. Generous pattern capacity. Can switch seamlessly between pattern selection and programming. Syncs to MIDI or Roland’s Sync24 protocol. Individual outputs for every voice. COMES WITH UK 3PRONG ORIGINAL POWER SUPPLY as sent by KLAUS small print in panel has faded in places . But its not apparent much. a small scratch here and there (the one looking like a hair scratch on one pic under step 14 is actually hair and not a scratch!!) But if you look closely on the bassdrum decay konb the lettering has faded slightly. There is also an actual scratch on the LT/LC switch. things like that make it a 'near good' condition but not perfect. Its a 15+ old machine so I guess little things like that can be expected and are described upfront so no surprises. These have become quite expensive on ebay so this is a chance to get yourself a nice 808 for no primetime $$$$"

Erica Synths PĒRKONS HD-01 Hybrid Drum Machine + Synthesizer

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via this listing

Additional Perfect Circuit listings

Flame Mäander Hybrid Desktop Synthesizer

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via this listing

Additional Perfect Circuit listings

New England Digital Synclavier 9600 Monitor Model GDM-1952

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via this eBay listing

Moog Memorymoog LAMM // Serviced by VS&C

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via this Reverb listing

"MemoryMoog ( owned by Martin Solveig !) LAMM version

Works perfectly !

A new PSU ( silent & less heat) was installed by US"

Sequential Circuits - Prophet T8 // restored by VS&Co

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via this Reverb listing

"Sequential Circuits - Prophet T8

Cosmically, this unit is in excellent condition, a very few age-related scratches on the wood, but overall condition 8.5...9 out of 10

The synthesizer will be fully restored for sale.

A complete list of repairs and an invoice will be provided.

Planned work:

- Replacement of all electrolytic capacitors

- New metal inserts for knobs

- New battery and factory patches loaded

- Replacement of a few defective CEMs

- New trimmers

- Replacement of CMOS, op-amps, and capacitors in the S/H section

- Complete calibration

- Keyboard overhaul: replacement of some faulty optical sensors, new springs, and replaced dampers

- Cosmetic cleaning

Testing and collection in person (Paris 9th arrondissement) is recommended; shipping is possible."

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