Note: links to listings 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.
"Legendary VCS3 'Putney' in great condition. Serial number 255. Some wear on the top of case. Has been fully refurbished by Lucent. Comes with all pins, a cover and keyboard cord."
Monday, October 20, 2025
Roland RS-202 String Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"A fully functioning Roland string synth from the 1970's. Has the original owner's name scratched into upper right of the top panel but is barely noticeable and would be very easy to cover."
via this Reverb listing
"A fully functioning Roland string synth from the 1970's. Has the original owner's name scratched into upper right of the top panel but is barely noticeable and would be very easy to cover."
Oberheim OB-Mx Rackmount 4-Voice Synthesizer SN MX001073
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
The SN appears to be MX001073, listed back in February.
"I’m the sole owner of this super classic synth. purchased in 1996.
While in great condition aesthetically, the voices require calibration/tunning. when in 2 voice mode seems to stay in stay more in tune And doesn’t drift as much.
So this unit require a little bit of work hence the lower price."
via this Reverb listing
The SN appears to be MX001073, listed back in February.
"I’m the sole owner of this super classic synth. purchased in 1996.
While in great condition aesthetically, the voices require calibration/tunning. when in 2 voice mode seems to stay in stay more in tune And doesn’t drift as much.
So this unit require a little bit of work hence the lower price."
🎛️ VAEMI : Kraakdoos / Cracklebox Atölyesi : Workshop #diy #diyprojects #gate
video upload by Vaemi
"Kraakdoos (aka Cracklebox), 1970’lerde Michel Waisvisz tarafından tasarlanan deneysel bir elektronik müzik aletidir.
Bu cihaz, parmak uçlarınızla devreyi tamamlayarak ses üretmenizi sağlar — her dokunuş, farklı bir ton, şiddet ve karakter yaratır.
VAEMI’nin modern tasarımıyla yeniden hayata geçen bu versiyonda:
• Transformatör izolasyonlu line çıkış,
• Dahili hoparlör ve harici çıkış seçeneği,
• LM709 op-amp tabanlı analog devre,
• 9V pil ile çalışma gibi özellikler bulunur.
Resimde gördüğünüz bu synthesizer’ın tüm PCB ve elektronik bileşenleri size atölye ücreti dahilinde eksiksiz bir şekilde sağlanacaktır. Derse yanınızda hiçbir şey getirmeden gelmeniz yeterlidir. Lehim kalemi, lehim, pasta, hoparlör, pil gibi gerekli malzemeler de tarafımızdan sağlanacaktır. Daha önce birkaç kez lehim yapmış iseniz bu dersler tam size göre olabilir. Dersin sonunda birleştirdiğiniz synthesizer’lar sizlerin olacaktır. Dersin başında size bütün elektronik bileşenler teslim edilecek ve bir takım şema ve synthesizer’ımız ile ilgili notlar dağıtılacaktır. “Elektrik nedir?”, “Kullanılan elektronik malzemeler ile ilgili temel bilgiler”, “Şema okuma” gibi giriş konularından sonra synthesizer üzerinde bölüm bölüm, her bölümün nasıl çalıştığını anlayarak adım adım ilerleyeceğiz. Dersin sonunda ise hep beraber synthesizer’larımızı çalıyor olacağız.
Katılımcılar, atölye süresince kendi Cracklebox’larını üretecek, cihazın elektronik yapısını öğrenecek ve sonunda kendi ürettikleri enstrümanı evlerine götürecekler. 🎶
📩 Kayıt & bilgi: @vaemisynth"
Googlish:
"Kraakdoos (aka Cracklebox) is an experimental electronic musical instrument designed by Michel Waisvisz in the 1970s.
This device allows you to produce sound by completing the circuit with your fingertips — each touch creates a different tone, intensity and character.
This version, revived with VAEMI's modern design, features:
• Transformer-isolated line output,
• Internal speaker and external output option,
• LM709 op-amp based analog circuit,
• 9V battery operation.
All PCB and electronic components of the synthesizer you see in the picture will be provided to you as part of the workshop fee. You just need to come to the lesson without bringing anything with you. We will also provide the necessary materials such as a soldering iron, solder, flux, speaker, battery. If you have done a few soldering jobs before, these lessons may be perfect for you. At the end of the lesson, you will have your assembled synthesizer. At the beginning of the lesson, you will be given all the electronic components and a set of schematics and our synthesizer. Relevant notes will be distributed. After introductory topics such as "What is electricity?", "Basic information about the electronic materials used", and "Reading schematics", we will proceed step by step on the synthesizer, section by section, understanding how each section works. At the end of the lesson, we will all be playing our synthesizers together.
During the workshop, participants will build their own Crackleboxes, learn the electronic structure of the device, and finally take home their own instrument. 🎶
📩 Registration & information: @vaemisynth
"Good luck, Astronauts" - on Wersi Comet
video upload by organfairy
"It's funny how music for science fiction movies has changed over the years: Back in the 1950's the movie 'Forbidden Planet' was noted for it's out-of-this-world music that was played on non-musical electronic instruments - instruments designed more for laboratory and experimental use.
Later in the 1960's science fiction music was more about rhythmic beeps and weird tingling sounds - the beeps probably inspired by the radio signal that the Soviet satelite Sputnik send down to earth while it circled the globe outside the atmosphere.
Later science fiction music was more about lush classical arrangements with some electronic sound effects added.
This piece of music is from the late 1960's and it falls in the beep-and-tingling category. It is written by the Danish organ player Peter Erling but I don't know exactly when it was recorded as there are no indications on the album and both the record company and Erling himself has been dead for decades. I transcibed the music myself and I found some close-enough Sputnik effects on my old Wersi Comet organ."
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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




























