Note: Auction links are affiliate links for which the site may be compensated.
via this eBay listing
"This was found in a storage unit it is untested but appears in good condition. Very rare and hard to find. Bid knowing that this is untested and may need repairs. Very hard to find get it while you can! Starting the bid at $500 unsure of a good starting point for this. Hopefully that’s not too crazy!"
Showing posts with label New Old. Show all posts
Showing posts with label New Old. Show all posts
Monday, August 18, 2025
Saturday, August 16, 2025
Mediamix Joystick Controller for Vintage Moog, ARP & Oberheim Synths
Note: Auction links are affiliate links for which the site may be compensated.
via this eBay listing
"Made in the late 70's, this company Mediamix made these awesome joystick controllers that could be interfaced with Moogs, ARPs and Oberheim synthesizers. This one had been used with an Oberheim TVS-1 Two Voice Synthesizer. The controller is in excellent physical condition, but is untested and sold as-is. Obviously from the circular connector, it would take some modifications to the synthesizer to interface this, it's not plug and play."
You can see one installed in this Oberheim Four Voice FVS-1.
via this eBay listing
"Made in the late 70's, this company Mediamix made these awesome joystick controllers that could be interfaced with Moogs, ARPs and Oberheim synthesizers. This one had been used with an Oberheim TVS-1 Two Voice Synthesizer. The controller is in excellent physical condition, but is untested and sold as-is. Obviously from the circular connector, it would take some modifications to the synthesizer to interface this, it's not plug and play."
You can see one installed in this Oberheim Four Voice FVS-1.
Tuesday, August 05, 2025
Concord Rhythm Maker R 3000
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
"very rare Vintage drum machine made in Japan , in good working condition, the coca cola can is not included, itis there to show the size scale,"
via this Reverb listing
"very rare Vintage drum machine made in Japan , in good working condition, the coca cola can is not included, itis there to show the size scale,"
Saturday, August 02, 2025
SynthAxe Demo - Full Video #sythnaxe #guitar #synth #music
video upload by natr0n
via Wikipedia
"The SynthAxe is a fretted, guitar-like MIDI controller, created by Bill Aitken, Mike Dixon, and Tony Sedivy and manufactured in England in 1985. It is a musical instrument that uses electronic synthesizers to produce sound and is controlled through the use of an arm resembling the neck of a guitar in form and in use. Its name comes from the words synthesizer and axe, a slang term meaning a guitar in rock music. The system was developed as a joint venture funded by Richard Branson's Virgin Group.
The SynthAxe itself has no internal sound source; it is purely a controller and needs synthesizers to produce sound.[1] The neck of the instrument is angled upwards from the body, and there are two independent sets of strings.
The fretboard is continuously scanned and sends signals to synthesizers which produce the sound. The left set determine the pitch played, through contact with the frets on the neck and by sensing the side-to-side bending of the string. The right set of strings are velocity sensitive; these strings can be plucked, strummed or damped in the same manner as a guitar. A keyboard made up of nine keys can also be used to trigger notes instead of the strings.[2] Design of the key toggles was done by the late David Fowler, at the time trading under BJ Hopkins Injection and toolmaking, in Littleworth, Oxford.
An electronic tremolo bar (the 'electronic wang arm') can be used for standard whammy bar effects, or can be redefined to produce different MIDI output such as filter cutoffs or volume.[3]
When originally produced, the SynthAxe was priced at £10,000[4][5] (approximately $13,000) and eventually sold for about £6,000. The instrument was built from aerospace and military grade hardware, and was such a sophisticated and expensive piece of machinery that few were sold, making it difficult to keep the company afloat. In or around 1986, Virgin Games took over the distribution but let it go after a couple of years.
Fewer than 100 SynthAxes were made,[6] and it is difficult to locate used units. Most musicians who desire a MIDI guitar controller often use other alternatives, such as Roland or Axon systems that can convert a guitar's output to MIDI via 13-pin cables and outboard devices or older systems such as the Roland GR-500."
Wednesday, July 02, 2025
Keio/Korg Donca Matic Universal
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
This might be the first Donca Matic Universal to be featured on the site.
Two pics of the inside below.
"At Herscheid & the Headbangers: Super rare Keio Donca Matic Universal Drum Machine in fair condition.
Fair condition because some functionalities are not reliable like the start/stop button. (Unit is always on basically). When using it I would just flip the sound/silence switch.
Sign button responsible for the metronome and cue will engage about 80% of the time. I doubt that many musician today will be using that feature but still prefer to mention it.
There's also a clock / clicking sound when volume is past 60% - 70% so it would benefit further amplifying before next stage or unit
EQ in perfect working order
The magic solo feature is fully working
All potentiometers are turning smoothly without scratchy noises
Both high and low impedance outputs are functional. I couldn't test the (very) old speaker connector
Tempo knob and Tempo Matic / Common functionalities perfectly working
Every program / style is working, same for every instrument + their respective on/off switch
FOX SWING section super fun to use! In good working order. The normal/quick button is working but seems to be reversed. Swing / normal working and properly set.
ADLIB MANUAL: Nice feature but will not necessary replicate the notes shown (It's basically depending on if other settings are engage or no. I don't think it was designed like this, just the old age of some components most likely responsible for this behavior)"
via this Reverb listing
This might be the first Donca Matic Universal to be featured on the site.
Two pics of the inside below.

Fair condition because some functionalities are not reliable like the start/stop button. (Unit is always on basically). When using it I would just flip the sound/silence switch.
Sign button responsible for the metronome and cue will engage about 80% of the time. I doubt that many musician today will be using that feature but still prefer to mention it.
There's also a clock / clicking sound when volume is past 60% - 70% so it would benefit further amplifying before next stage or unit
EQ in perfect working order
The magic solo feature is fully working
All potentiometers are turning smoothly without scratchy noises
Both high and low impedance outputs are functional. I couldn't test the (very) old speaker connector
Tempo knob and Tempo Matic / Common functionalities perfectly working
Every program / style is working, same for every instrument + their respective on/off switch
FOX SWING section super fun to use! In good working order. The normal/quick button is working but seems to be reversed. Swing / normal working and properly set.
ADLIB MANUAL: Nice feature but will not necessary replicate the notes shown (It's basically depending on if other settings are engage or no. I don't think it was designed like this, just the old age of some components most likely responsible for this behavior)"
Tuesday, July 01, 2025
This Rare Anatolian Drum Machine Hits Differently
video upload by HAINBACH
Bojidar Alaturka RITM - BOX
"I had no idea what to expect when I got this vintage drum machine from Istanbul. It looks like a classic Elka Drummer One style preset rhythm box, but there was no 'Tango' or 'Slow Rock' on here. Instead, the patterns are marked by timings, 9/8, 7/8, 5/4. I was fascinated but needed a lot more input, so I kicked of a little investigation into traditional Anatolian dance music, the history of the machine itself and the musicians that used it.
Music and samples: / hainbach
Listen to my music: http://hainbach.bandcamp.com"
00:00 Intro and translating
01:58 Turning it on
03:53 Making a track
05:39 A look inside
06:36 Anatolian Music Primer
10:31 Who made it and who played it?
Monday, June 16, 2025
Voice Systems Genius Data Filer w/ Original Box
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
"rare machine, made to store, read, and transfer midi data files. and also can play them back via it's midi output to other devices, or via it's own sound engine.
it's also made to work with general midi, and it has a general midi playback sound engine inside, which is fully configurable, tracks can be muted, instruments selected, etc. it even has audio effects per track.
nice for a journey into general midi research, and old video games soundtracking. or as a midi sequences orchestrating playback device.
it has floppy emulator installed instead of a floppy disk drive, which makes it way easier to operate, and midi files can be easily transferred from a computer.
comes with original box, original manual and original power supply.
made in Italy."
via this Reverb listing

it's also made to work with general midi, and it has a general midi playback sound engine inside, which is fully configurable, tracks can be muted, instruments selected, etc. it even has audio effects per track.
nice for a journey into general midi research, and old video games soundtracking. or as a midi sequences orchestrating playback device.
it has floppy emulator installed instead of a floppy disk drive, which makes it way easier to operate, and midi files can be easily transferred from a computer.
comes with original box, original manual and original power supply.
made in Italy."
Friday, June 13, 2025
Adventures in Audio - Talking Typewriter
video upload by Manitou Productions
"Today we look at the Talking Typewriter by Petite, circa 1981. What does it do? How does it sound? And what's rattling around inside...? Let's find out!
Chapters:
0:00 What's rattling?
0:12 Titles
0:20 Leaking batteries
1:01 Cleaning the battery terminals
3:52 New batteries
4:55 Power on!
6:00 It speaks the letters
7:42 I try to spell some words
12:52 It speaks the numbers
14:19 Some revelations
15:33 I attempt to open it up
17:13 It keeps its secrets for today
18:29 Outro
18:52 Ivy's Corner"
Wednesday, June 11, 2025
Pearl Pk-701 Ultrarare Polyphonic Keyboard Synth
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
This appears to be the first post to feature the Pearl Pk-701.
"Extremely rare synth by Pearl, produced in very limited numbers with very little documentation available online.
It resembles an Italian-style string machine with piano, string, and brass sounds, featuring a beautiful chorus and vibrato. In reality, it’s a true 8-voice polyphonic synthesizer with an absolutely beautiful sound.
Cosmetically is in great condition, unfortunately, there are no schematics available, and I haven’t been able to tune the individual voices. Each voice has 4 potentiometers, but without documentation, it’s difficult to tune everything properly.
All the voice boards work perfectly, although the slot for board 2 doesn’t output piano sounds on the assigned note."
via this Reverb listing
This appears to be the first post to feature the Pearl Pk-701.
"Extremely rare synth by Pearl, produced in very limited numbers with very little documentation available online.
It resembles an Italian-style string machine with piano, string, and brass sounds, featuring a beautiful chorus and vibrato. In reality, it’s a true 8-voice polyphonic synthesizer with an absolutely beautiful sound.
Cosmetically is in great condition, unfortunately, there are no schematics available, and I haven’t been able to tune the individual voices. Each voice has 4 potentiometers, but without documentation, it’s difficult to tune everything properly.
All the voice boards work perfectly, although the slot for board 2 doesn’t output piano sounds on the assigned note."
Thursday, June 05, 2025
Teac Rhythm 8 Vintage Drum Machine Rhythm SN 908
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
This appears to be the first one to be featured on the site.
via this Reverb listing
This appears to be the first one to be featured on the site.
Tuesday, May 27, 2025
Aries Modular Synthesizer Catalog
Note: Auction links are affiliate links for which the site may be compensated.
via this eBay listing
"Aries Music 1978 Catalog. Aries Modular synthesizer information across a 12 page catalog (cover to cover). Cool pics of 4 Aries modular systems and pics/specifications of the modules. Also Extra separate 6 sheets (double sided) on Aries synthesizer module kits. Good condition, however minor scuff, slight corner crinkle, has punch holes, no missing pages, intact, no writing, no highlights, no stains. Awesome vintage analog synthesizer literature for the studio library. Time keeps on slipping into the future."
via this eBay listing
"Aries Music 1978 Catalog. Aries Modular synthesizer information across a 12 page catalog (cover to cover). Cool pics of 4 Aries modular systems and pics/specifications of the modules. Also Extra separate 6 sheets (double sided) on Aries synthesizer module kits. Good condition, however minor scuff, slight corner crinkle, has punch holes, no missing pages, intact, no writing, no highlights, no stains. Awesome vintage analog synthesizer literature for the studio library. Time keeps on slipping into the future."
Friday, May 09, 2025
Optonica MX-1000 1970s Mixer / Analog Reverb / Rhythm Machine
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
This looks more like an amp than a mixer. The built-in rhythm machine gets the post. This would be a fun item to show off in the studio. "Check out my new amp", then flick on the rhythm section, or route a sequence running on your other gear through it with the volume down, then say "I wonder what's on the radio", mute your main mixer and switch over to the Optonica, "Oh it's me!"
"The MX-1000 is an extremely rare product, it is a mixer, an analog reverb unit & a pre-programmed rhyrhm machine.
Warm-sounding reverb, deep sinking echoes, and saturation sounds unique to analog mixers.
Rhythm machine sound like Roland CR-78.
You can listen to these wonderful sounds on youtube.
Features :
Inputs
- 2ch Microphone
- Phono
- Aux
Reverb / Echo effects
Pre-programmed rhythm machine (Waltz, Rock, Cha Cha, Latin, Ballad, Mambo, Foxtrot & Waltz Rock)"
This is the first post to feature the MX-1000. Curios what the rhythm circuits are based on.
via this Reverb listing

"The MX-1000 is an extremely rare product, it is a mixer, an analog reverb unit & a pre-programmed rhyrhm machine.
Warm-sounding reverb, deep sinking echoes, and saturation sounds unique to analog mixers.
Rhythm machine sound like Roland CR-78.
You can listen to these wonderful sounds on youtube.
Features :
Inputs
- 2ch Microphone
- Phono
- Aux
Reverb / Echo effects
Pre-programmed rhythm machine (Waltz, Rock, Cha Cha, Latin, Ballad, Mambo, Foxtrot & Waltz Rock)"
This is the first post to feature the MX-1000. Curios what the rhythm circuits are based on.
Modified DIGIAC 4010 Logic Trainer SN 1007
Note: Auction links are affiliate links for which the site may be compensated.
via this eBay listing
This appears to be the first post to feature DIGIAC.
"This was originally a logic trainer for education but I re-purposed it as a logic source to experiment with hybrid analog/digital modular music synthesizers. I'm selling it because I no longer have a modular synth to use it with. It has been rebuilt with all new electrolytic capacitors, I/O switches and blue LEDs. Included is an assortment of multicolor patch cables that I made up with silicone jacketed wire and gold plated 2.5mm banana plugs. Mounted in a wooden enclosure it is self contained with a built-in power supply & clock generator. Size is 19"W X 17.5 "H so it fits nicely in a 19" rack 10U space. I setup a demo video of a dual decade up counter.
Logic modules included:16x JK flip flops, numeric keypad, multiple AND/NAND/OR/NOR/XOR gates, full adder, D/A converter, 1k bit addressable memory, comparator, one shot multivibrator, schmitt triggered buffer, 60Hz clock, dual seven segment decimal display, other miscellaneous functions including four I/O switches and a patchable 16 pin IC socket (nice if you want to add an additional IC or an interface cable).
Cosmetic condition: Fair to good with some scratches on the panel and damage to the wooden enclosure (see pictures).
Power source: 120VAC
Logic family: 7400 series 5V TTL"
via this eBay listing
This appears to be the first post to feature DIGIAC.

Logic modules included:16x JK flip flops, numeric keypad, multiple AND/NAND/OR/NOR/XOR gates, full adder, D/A converter, 1k bit addressable memory, comparator, one shot multivibrator, schmitt triggered buffer, 60Hz clock, dual seven segment decimal display, other miscellaneous functions including four I/O switches and a patchable 16 pin IC socket (nice if you want to add an additional IC or an interface cable).
Cosmetic condition: Fair to good with some scratches on the panel and damage to the wooden enclosure (see pictures).
Power source: 120VAC
Logic family: 7400 series 5V TTL"
Saturday, May 03, 2025
Woodhouse Soundsystem D9 - Drum Expander SN 812146
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
This appears to be the first post to feature Woodhouse. If anyone has any more info on them feel freel to comment.
All I could find on it was the following from the Sequencer.de forums [Googlish link]:
"Hello! I took some more pictures here! It's made in Denmark! The circuit boards say: Mark Mason electronic Denmark."
via this Reverb listing
This appears to be the first post to feature Woodhouse. If anyone has any more info on them feel freel to comment.
All I could find on it was the following from the Sequencer.de forums [Googlish link]:
"Hello! I took some more pictures here! It's made in Denmark! The circuit boards say: Mark Mason electronic Denmark."
Saturday, April 19, 2025
NDK Vintage Rhythm Machince
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
This appears to be the first one to be featured on the site. You can find additonal NDK creations in previous posts here.
Pics of the inside below.
"This nostalgic drum machine is for sale due to studio downsizing. Probably one of the first .
One example is said to be in the German museum.
It is fully functional and still looks quite fresh.
A piece of plastic is missing from 2 gray toggle switches at the front.
All the capacitors have been replaced so that it runs without any background noise.
Very organic, powerful sound, produced by coils and germanium transistors, among other things.
230V
Width: 60 cm, depth: 28 cm Height: 9 cm"
via this Reverb listing

Pics of the inside below.
"This nostalgic drum machine is for sale due to studio downsizing. Probably one of the first .
One example is said to be in the German museum.
It is fully functional and still looks quite fresh.
A piece of plastic is missing from 2 gray toggle switches at the front.
All the capacitors have been replaced so that it runs without any background noise.
Very organic, powerful sound, produced by coils and germanium transistors, among other things.
230V
Width: 60 cm, depth: 28 cm Height: 9 cm"
Tuesday, April 15, 2025
FESMA PK-70 - Vintage Italian Synth (1985) HD
Note: Auction links are affiliate links for which the site may be compensated.
video upload by Alberto Napolioni
Note this appears to be the first PK-70 to be featured on the site.
FREE IMPROVISATIONS
on this absolutely rarity
the FESMA PK-70!
00:00 Melancholy Glitch
00:27 SINE tempore
00:41 Arcadia
01:01 VaporWaving
01:22 Reverse Cascade
01:43 SAYONARA
01:56 Robotronics
FX Used on some parts:
OTO BAM reverb
OTO BIM delay
via this Reverb listing
"The unfindable FESMA PK-70!(a prototype probably)
Features:
Vintage wavetable synth,with effects, custom drums, MIDI & built in speakers, etc
Fully SERVICED by pro tecnician
Comes with its power charger and custom Case."
video upload by Alberto Napolioni
Note this appears to be the first PK-70 to be featured on the site.
FREE IMPROVISATIONS
on this absolutely rarity
the FESMA PK-70!
00:00 Melancholy Glitch
00:27 SINE tempore
00:41 Arcadia
01:01 VaporWaving
01:22 Reverse Cascade
01:43 SAYONARA
01:56 Robotronics
FX Used on some parts:
OTO BAM reverb
OTO BIM delay
via this Reverb listing
"The unfindable FESMA PK-70!(a prototype probably)
Features:
Vintage wavetable synth,with effects, custom drums, MIDI & built in speakers, etc
Fully SERVICED by pro tecnician
Comes with its power charger and custom Case."
Sunday, March 30, 2025
Mystery Vintage Matrix Pump, Tim Smith DIY & Vintage EML
Pictured are a few interesting items for sale from Mike Berman. You can find them here.


All Mike knows about it follows: "For me, the nature of the Matrix pump and its affiliation with EML is pure speculation. I always assumed it to be, at best, an unfinished one-off. If you magnify the photo you can read the labels on the controls and they are intriguing. The multi-pin socket on the left side of the MP accepts the same plug that EML sequencers use. That section is labeled 'Synto Interface'. I experimented with various patches and found some functionality in a few of the controls but I don't recall specifics beyond that. "
Below that you can see The Tim Smith box featuring the following section: Explonental Amp, Noise Generator, Lag Processor, and ENV/Gate Generator. I asked Mike is Tim Smith the same Tim Smith that was the Western Regional Tech Rep for Sequential Circuits , Arp, Moog and also contributed to the famous Vintage Synthesizers book and articles in Keyboard Magazine. He's not sure but believes it is.
Further below you'll find the MODEL EML-200, MANUAL CONTROLLER EML-300, multi-pin cables, EML 400 : EML 401, EML 500, EML POLY-BOX, X-Y CONTROLLER
Wednesday, March 26, 2025
Of cyclotrons and sequencers: recreating a 1974 “probability controller” in Eurorack
video upload by Electrum Modular
"This is the first video in a new series exploring the University of Iowa’s Electronic Music Studio. In addition to presenting its historic instruments (including a 1968 Moog IIIP with custom-made modules), and the famous musicians who have used them, these videos will extrapolate ideas to use in your own modular systems. This episode examines a unique random sequencer that was developed in 1974 by Paul Dingman, an electrical engineering student at Iowa. It then shows how it might be recreated using the third lane ('time') on Make Noise’s 0-Ctrl. NOTE: several other Eurorack sequencers also have this feature, as indeed does the Moog’s own 960 sequential controller; alternatively, use an LFO to clock any sequencer and patch the sequencer’s second lane/channel (if it has one) back into that LFO’s frequency input.
0:00 University of Iowa's Electronic Music Studio
0:42 Introducing Dingman's Probability Controller
1:58 Demonstrating the Probability Controller
3:50 Recreating the Probability Controller in Eurorack
My new album:
CREDITS
Thanks to Paul Dingman for answering my questions over Zoom.
Film sequences:
'Atom Smashers' (Encyclopaedia Britannica Films in collaboration with the Division of the Physical Sciences and the Institute of Nuclear Studies at the University of Chicago, 1952)
'The Meaning of Time In Science' (Encyclopaedia Britannica Films, d. Kent Smith, 1973); both archive.org
Portrait of Peter Tod Lewis: https://composers.com/collections/pet...
Music: Peter Tod Lewis, 'Gestes II' (1974), from the Mnemothèque Internationale des Arts Electroacoustiques (University of North Texas Music Library). Program notes for an EMS concert on April 13, 1979, described “Gestes II” as “the generation of musical gestures through coordinated operation of sequential controllers programmed to produce a large but finite collection of voltages, controlling variously oscillators, amplifiers, and filters” (University of Iowa Music Library)."
LABELS/MORE:
Dingman,
documentaries,
eurorack,
exclusive,
exclusive2025,
Make Noise,
MATRIXSYNTH Members,
MOOG,
New Old
Thursday, February 27, 2025
Lel DidiDrum by Ultrarare.su
video upload by Futulyric
"Ultrarare presents another super rare device drum module - Lel MIDIDRUM. In MIDI format all knobs of the device do not work, volume commands are transmitted in the note mode. Thus, the only regulator is the volume knob in the lower right corner. The simplicity of the plugin is compensated by the uniqueness of the source. To date, no other working preserved copy is known. Also included in the delivery set will be 34 unique drum parts of Lel in midi format, the name of which is written on the device."
This appears to be the first one to be featured on the site.
Wednesday, February 12, 2025
Scholer Tunesmith
Note: Auction links are affiliate links for which the site may be compensated.
via this listing
"Now this right here is some real vintage, one-of-a-kind, gear! Literally!
Produced in the 60's, these quirky little synths came as DIY builders kits, making each one slightly different in its own way. This one we got here is a great example of one built by someone who cared. Simple controls with a nice variety of sounds and voicings to make and play with to your heart's monophonic content!
While showing some signs of its age, this thing is still kicking and ready to be played!"
This appears to be the first one to be featured on the site.
via this listing
"Now this right here is some real vintage, one-of-a-kind, gear! Literally!
Produced in the 60's, these quirky little synths came as DIY builders kits, making each one slightly different in its own way. This one we got here is a great example of one built by someone who cared. Simple controls with a nice variety of sounds and voicings to make and play with to your heart's monophonic content!
While showing some signs of its age, this thing is still kicking and ready to be played!"
This appears to be the first one to be featured on the site.
NEXT PAGE
HOME
© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH













© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH