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via this VEMIA listing
Click the auction link on top when you get there for additional listings.
VEMIA is Peter Forrest's auction house. He is the author of The A-Z of Analogue Synthesizer Books.
"This potentially wonderful instrument is silent at the moment. We have had it here for two years or so, but time has run out and it needs to go to another person who can finish off the process of getting it 100% again.
It had power supply and disk drive issues. We have replaced the disk drive with an HxC drive, which contains everything that was on the floppies. Most of the OS floppies seem to have been corrupt or non-functioning. There is more work that needs to be done to the power supply / supplies. Both supplies are switchable 110/240V. The gas struts which should support the Grapher at an angle have given up holding up anything, and need to be replaced.
Cosmetically there is one superficial scratch above the Grapher's LED matrix, and the Solitary case front is not in brilliant cosmetic order.
It is serial number 990-0004-151. As there were apparently less than 40 of these made, I'm not sure why it has a long serial number. It has its original manual, original floppy disks in a case, the stunningly solid (military-grade?) custom flightcase, and the redundant (faulty) disk drive.
We believe this version is a Studio System, with eight voices (all with individual outs) and including the all-important Acxelizer for control and creation of voices.
There is some good info online. For instance EMEAPP published this great rundown: https://emeapp.org/2019/11/19/the-technos-acxel-resynthesizer/"
See this post for demos from the creator of the Acxel Resynthesizer. Also see the Technos label for additional posts including demos.
Tuesday, March 18, 2025
Hohner K2 Stringvox
Note: Auction links are affiliate links for which the site may be compensated.
via this VEMIA listing
Click the auction link on top when you get there for additional listings.
VEMIA is Peter Forrest's auction house. He is the author of The A-Z of Analogue Synthesizer Books.
"Extremely rare in this black livery, this is one of only a few that were exported to the USA. One of them was bought by Frank Zappa. Zappa's was recently sold at auction for $1905, despite seeming to have no visible sliders. This example here is in similar cosmetic condition, but has its slider stalks and thus can be controlled! We will be trying to source slider tops correct for the era and make - watch this space. 117V, so how it found its way back to Europe is a bit of a mystery. More info when known. Like many Hohner instruments, it is tatty on the outside, but the playing surface (protected by its lid) is very good. Also of course the heavy-duty case and lid make it a seriously heavy instrument. Packing 18GBP."
via this VEMIA listing

VEMIA is Peter Forrest's auction house. He is the author of The A-Z of Analogue Synthesizer Books.
"Extremely rare in this black livery, this is one of only a few that were exported to the USA. One of them was bought by Frank Zappa. Zappa's was recently sold at auction for $1905, despite seeming to have no visible sliders. This example here is in similar cosmetic condition, but has its slider stalks and thus can be controlled! We will be trying to source slider tops correct for the era and make - watch this space. 117V, so how it found its way back to Europe is a bit of a mystery. More info when known. Like many Hohner instruments, it is tatty on the outside, but the playing surface (protected by its lid) is very good. Also of course the heavy-duty case and lid make it a seriously heavy instrument. Packing 18GBP."
Trogotronic TR-Valkyrie Hot Rod Analog Synthesizer
Note: Auction links are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Recovery ExMic Deluxe Telephone Microphone
Note: Auction links are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Korg VC-10 Vocoder SN 160220
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
Additional Nightlife Electronics Listings
via this Reverb listing
Additional Nightlife Electronics Listings
Telepathic Orchid w/ Original Docs & Case
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
"Number 55/1000 of the units made so far.
It comes with a case as well as all the original instructions and materials."
See the Telepathic label below for additional posts.
via this Reverb listing
"Number 55/1000 of the units made so far.
It comes with a case as well as all the original instructions and materials."
See the Telepathic label below for additional posts.
Korg PS-3100 Polyphonic Synthesizer
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
"The PS-3100 Analogue Synthesiser has monstrous polyphony - one built-in VCO, VCF, VCA, and EG for each of the keys on the keyboard for a total of 48 synthesizer circuits and polyphony! There is no Ring Modulator or "tremolo modulator"; it has only 12 (divide-down) VCOs; there are 2 LFOs;"
via this Reverb listing
"The PS-3100 Analogue Synthesiser has monstrous polyphony - one built-in VCO, VCF, VCA, and EG for each of the keys on the keyboard for a total of 48 synthesizer circuits and polyphony! There is no Ring Modulator or "tremolo modulator"; it has only 12 (divide-down) VCOs; there are 2 LFOs;"
Moog Muse 8-Voice Analog Synthesizer
Moog Minimoog Voyager Limited Edition Lunar Impact W/ VX 351
Note: Auction links are affiliate links for which the site may be compensated.
via this listing
"New, rare, collectors condition Moog Minimoog Voyager Lunar Impact limited edition with the original VX 351 breakout box still untouched in the original packaging. Bob Moog’s last creation. An amazing synth that will only continue to increase in value. Especially in this condition."
via this listing
"New, rare, collectors condition Moog Minimoog Voyager Lunar Impact limited edition with the original VX 351 breakout box still untouched in the original packaging. Bob Moog’s last creation. An amazing synth that will only continue to increase in value. Especially in this condition."
Modulation Revolution - Shakmat Modular présente Griffin's Claws
video upload by Audiorial
"Salut !
Moduler c'est le cœur de la synthèse modulaire, alors quand un constructeur sort un module qui révolutionne cette fonctionnalité basique, ça donne Griffin's Claws, et le constructeur c'est Shakmat Modular. 4 atténuateurs avec mémoire de mouvement et mix en cascade, tant au niveau CV qu'avec de l'audio, Grffin's Claws en cache encore bien plus sous ses 4 knurlies ;)"
"Hello!
Modulation is the heart of modular synthesis, so when a manufacturer releases a module that revolutionizes this basic functionality, it's called Griffin's Claws, and that manufacturer is Shakmat Modular. Featuring four attenuators with motion memory and cascading mixing, both CV and audio, Griffin's Claws hides even more under its four knurlies ;)"
✅https://payhip.com/Audiorial
✅Tuto sampling complet : https://payhip.com/b/PO0fq
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© 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