Korg MiniKORG 700S SN 00110 w/ Extras

Note: Auction links are affiliate links for which the site may be compensated.
video uploads by Vintage Synthlab

Playlist:

1. 1974 MiniKorg 700s K2, vintage analog synthesizer for sale in Portland, Oregon - Demo 1 (Pop Songs)

This is Demo 1 (1 of 2 videos) highlighting the sound and character of the 700s / K2 synthesizer in action. This video contains 3 short pieces from 3 famous songs that were written and recorded during the 1970s using the 700s / K2 synthesizer.

1. The Cure - A Forest
2. The Cars - Just What I Needed
3. The Normal - T.V.O.D."

1974 MiniKorg 700s K2, vintage analog synth for sale in Portland, Oregon - Demo 2 MIDI Bach BWV 565

2. 1974 MiniKorg 700s K2, vintage analog synth for sale in Portland, Oregon - Demo 2 MIDI Bach BWV 565

This is Demo 2 (2 of 2 videos) highlighting the sound and character of the 700s / K2 synthesizer in action, and showing the external control of DAW, via MIDI, into a MIDI-to-CV convertor, connected to the CV inputs on the back side of the 700s. The MIDI songs has multiple organ and harpsichord tracks. The MIDI output to the 700s is one of the main tracks for this piece, panned to the RIGHT side of the stereo field, to help discern the 700s sound. The point of this video is to show the capability of DAW control, given all the external hardware interfaces, which comes with the sale of the 700s as one package.

via this Reverb listing

"All items that come with this sale:
* 1974 Korg MiniKorg K2 / 700s
* Kenton CV Upgrade (adds 3 CV input jacks/sockets on backside of synth)
* Kenton Pro Solo Mk2 (MIDI-CV convertor)
* Custom Flight Case
* USB to 2-channel MIDI convertor box + long USB cable

Demo video # 1:
Demo video #2:

This 1974 MiniKorg K2 / 700s works and sounds great. It has the Kenton CV upgrade, a hardshell case, and I’m throwing in a Kenton Pro Solo Mk2 MIDI-to-CV converter, a USB to 2-ch MIDI convertor, long USB cable.

Everything works great and is ready for any modern studio DAW, or adaptation to your external MIDI capable hardware!

The Kenton CV upgrade “3 socket” kit has three 3.5mm ports (easily interfaces with modular synthesis architecture!) or a MIDI-to-CV convertor (which I am including for free with this sale). The 3 inputs are: CV (pitch in), GATE (note on/off), FILT (filter control).

The synth has been with me for about 14 years. I serviced vintage synth and pro-audio gear for the last 30+ years, and this was one that I restored, upgraded, used for recording, and cared for. Every key contact works great, all adjustments have been calibrated, it stays in tune, and every feature works."

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E-mu Drumulator 8 Kits + MIDI upgrade board

video upload by Harry Axten

https://hkadesign.org.uk/d8km.html



"ROM switcher boards and third-party sound ROMs are nothing new as far as the E-mu Drumulator is concerned – in fact both were available while the machine was current. JL Cooper Electronics and others made 3-kit boards, and Digidesign (who later became Avid) got their start producing alternative sound ROMs for the Drumulator under their original name of Digidrums. That said, while the various alternative ROM sets are easy to come by these days, ROM switcher boards are not, and without one it’s a total pain to keep swapping chips in and out as you have to take out 8 screws on the underneath of the thing, lift off the lid, swap 5 chips over and put it all back together again.

8 Kits

I wanted a modification very much in the same style as my TR-707 ROM expansion board, with a number of kits that you can instantly switch between. As with that project, this is done without the need for any additional switches and instead uses a microcontroller to snoop on the front panel switch matrix. Kits are selected by holding down one of the bottom row of buttons marked 1-8 and pressing the ENTER button. The selection is remembered when the Drumulator is powered off too.

The Drumulator’s sounds are stored across 4x 16kB ROM chips, although they form one continuous region of memory. Thanks to this, and due to the way that they’re selected, it’s really easy to replace all four with a single large capacity chip. The 512kB flash ROM that I used can hold 8 kits worth of sounds, which works out nicely as that’s the stock sounds plus 7 of the Digidrums kits, including the famous Rock Drums kit:

Stock kit
Digidrums Alternate Drum Set 1
Digidrums Electronic Drums 1
Digidrums Electronic Drums 2
Digidrums Rock Drums
Digidrums Jazz Drums
Digidrums Latin Percussion
Digidrums African + Misc Percussion
Because each kit also has a corresponding modified program ROM (as the length of sounds, locations in memory and channel assignments are all hard-coded into the Drumulator’s firmware); the D8KM board also has an EPROM which contains the relevant OS for all 8 kits, and is connected to the Drumulator’s OS ROM socket with a ribbon cable. Fortunately the Drumulator doesn’t care if the OS ROM changes while the machine is running as long as they’re all the same version, which they are – ‘P3.00’, the final version.

MIDI

I chose also to include MIDI functionality as part of the upgrade, as most Drumulators don’t have it. E-mu did offer a retrofit, which has been cloned over the years, but it’s very basic and only does MIDI notes. The D8KM board on the other hand also offers the ability to sync the sequencer to incoming MIDI clock. Just set the Drumulator to external clock and if MIDI clock is available, it will automatically override the external clock signal and will also start and stop playback. If MIDI clock is not available the Drumulator will use the external clock signal as normal, including for the tape loading functionality."

Clatters Machines Introduces SONORA Spectral Mixing Output Module

Video Manual upload by Clatters Machines

Chapters:

0:00 Meet Sonora
0:09 What's Sonora?
1:15 Headphones on!
1:30 12 pre-panned inputs summing mixer
1:59 Dive into stereophony possibilities
4:18 Pro Line outputs
4:28 Headphones output and loudness indicators
4:35 LED meter and soft clipping limiter circuit
4:53 Why Sonora?
5:15 Ciao!

"Sonora is a 6HP, skiff friendly, spectral mixing output module designed to be the ultimate sound stage of your eurorack setup.
A place where all your mixes meet and find a stereophonic solution for your final track thanks to its twelve fixed panning inputs that allow you to give each track its own space and importance in the stereo field. While being a 12 inputs summing mixer, Sonora also features a LED meter, a soft clipping limiter circuit at the output stage, a headphone output section with loudness indicators and 3.5mm pro line output jacks.

Features:

12 pre-panned audio inputs:
2 hard left inputs;
2 hard right inputs;
2 mid left inputs;
2 mid right inputs;
1 low left input;
1 low right input;
2 mono inputs;
3.5mm stereo headphones socket (300mW headphone amp @200Ω impedance) with dedicated volume control and stereo LEDs loudness indicators;
3.5mm pro line outputs jacks (+4dBu);
master volume control;
stereo LEDs meter with 0dB reference indicator;
soft clipping limiter circuit;"


Update: press release follows:

"Clatters Machines announces availability of Sonora spectral mixing output module as ultimate sound stage for Eurorack setups

SAN BENEDETTO DEL TRONTO, ITALY: small town lovers of music and electronic instruments Clatters Machines is proud to announce availability of its Sonora spectral mixing output module — aimed at acting as the ultimate sound stage for Eurorack setups by being marketed as a place where all of a user’s mixes meet to find a stereophonic solution for the final track, thanks to 12 fixed panning inputs that allow each track to breathe in its own space while also determining its importance in the stereo field — as of May 23…

Translated to generally meaning sound (in English), sonora is actually an Italian feminine adjective that stands for loud, resonant, ringing, and sonic — depending on the context in which it is used; however, in the context of Sonora being aimed at acting as the ultimate sound stage for Eurorack setups as Clatters Machines’ latest module, who better, then, to introduce it than company Co-founder, engineer, designer Michelangelo Nasso. “A compact, final sound stage module was an obvious — and needed — choice for us,” he begins, before briefly detailing how it came into being: “As musicians, we’ve always struggled with headphone/output/mixing modules. Most modules in this field take up way too much space inside a case — space that we’d prefer to fill with other effects, sound sources, and utilities. And although some other output
modules are super-small, which is nice, they usually lack features, so we tried to solve this problem with what we think is the
perfect combination of what’s already out there.”

Think 12 pre-panned audio inputs — including two hard-left inputs, two hard-right inputs, two mid-left inputs, two mid-right inputs, one low-left input, one low-right input, and two mono inputs. “So Sonora has 12 pre-panned audio inputs, which is great if you’re composing with multiple sound sources,” says Michelangelo Nasso, continuing: “We came up with the idea of additionally assigning a fixed panning space to each input, so the possibility of creating a perfectly stereo balanced final track is pretty straightforward.”

Further features abound, as Michelangelo Nasso notes: “Once we created what is basically a spectral 12-input summing mixer, we decided to go all in and added all the features we think are a must for an end-of-chain module, such as a 3.5mm stereo HEADPHONES socket, with dedicated volume control and stereo LED loudness indicators; 3.5mm pro LINE outputs; stereo LED meter, with a 0dB reference indicator; and a soft clipping limiter circuit, which we believe is always handy, both to protect your gear and spice things up!”

And as if that is not an exciting enough prospect in itself, all those features fit neatly into a 6HP-wide module with an anodised brush aluminium front panel that is available in either black or silver, so standing out from the sound of the crowd with what is surely the ultimate sound stage for a Eurorack setup also applies to what a Sonora purchaser prefers that proposition to look like.

Sonora is available worldwide — with a choice of silver- or black-coloured aluminium front panels — from Clatters Machines’ growing global network of retailers (https://clattersmachines.com/retailers-3/) or directly via its online Store (https://clattersmachines.com/shop/) for €245.00 EUR (plus VAT). For more in-depth information, please visit the dedicated Sonora webpage here: https://clattersmachines.com/prodotto/sonora/"

Check dealers on the right for availability.

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"

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New Eurorack Modules Coming From Doepfer

Doepfer will be showcasing the above new modules at SUPERBOOTH25. Details on each follow.
Check with dealers on the right for upcoming availability.

Module A-119-2 is kind of a dual version of module A-119 without envelope follower. Instead two amplifiers are available and the module width is 4 HP only.

The module contains two amplifiers with separately adjustable amplification levels. Each channel is equipped with an overload display. The module can be used also for stereo signals, e.g. the stereo output of a smartphone.

Controls and displays:

Level 1/2: manual control of the amplification in the range 0 - about 45.

Overload 1/2: overload LED, begins to light up for output levels beyond about 10Vpp (+/-5V)

In 1: audio input 1 (monophonic or stereophonic, see technical details)

In 2: audio input 2 (monophonic)

Out 1/2: audio output (monophonic)

Technical details:

for higher amplifications the two amplifiers can be daisy-chained

normalling options: the signal applied to socket In 1 can be normalled to socket In 2 in different ways by means of a jumper on the pc board:

socket In 1 is connected via a mono patch cable (standard patch cable) to a monophonic signal and this signal is normalled to socket In 2 (i.e. the same input signal for both sub-units): jumper on pin header JP2 in upper position

socket In 1 is connected via a 3.5 mm stereo TRS cable to a stereophonic signal and the second channel of the stereo signal is normalled to socket In 2: jumper on pin header JP2 in lower position

no normalling: jumper is removed from pin header JP2

all inputs and outputs are DC coupled. Thus the module can be used also for the amplifications of control voltages.

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Erica Synths and Moritz Klein Introduce EDU DIY FM Drum Eurorack Module

via Erica Synths

"Introducing an FM Drum circuit that fuses analog punch with metallic tones of FM synthesis. This DIY kit offers a wide range of sounds for your patches, from kicks to toms, metallic clangs and more – a great addition of versatile, rhythmic elements to your system!

We – Erica Synths and Moritz Klein – have developed a series of educational DIY kits under the brand name mki x es.EDU with one specific goal in mind: to teach people with little-to-no prior experience how to design analog synthesizer circuits from scratch. What you’ll find in the box is not simply meant to be soldered together and then disappear in your rack. Instead, we want to take you through the circuit design process step by step, explaining every choice we’ve made and how it impacts the finished module.

NB! All kits in these series are simple and come with extensive user manuals which can be downloaded separately, therefore we will not provide customer support in case your DIY build fails to function or similar."

Designing an FM Drum circuit from scratch (kick, tom, bell & cymbal)

video upload by Moritz Klein

Chapters
00:00 Intro & Sound Demo
01:46 Triangle VCO
05:56 Tri To Sine Waveshaper
07:17 VCA
11:20 Decay Envelope
12:28 Gate To Trigger Converter
14:00 VCO Reset
15:26 Pitch Envelope
18:44 Attack (Distortion & Click)
21:38 FM
25:00 XOR Pulse
27:36 High Pass
30:05 Decay CV
31:20 Tune CV
34:08 Final Demo & Outro



Build your own FM Drum as a DIY eurorack kit: https://www.ericasynths.lv/shop/diy-k...

"While trying to fix a broken TR-909, I came up with a DIY analog FM Drum circuit that combines the punchy character of the 909 with the metallic textures of FM synthesis. It comes with four different modes:

• 909-style kick/tom
• Metallic bell/gong
• Ring mod cymbal
• FM cymbal

The FM Drum is the final drum voice in my DIY drum machine series (for now). If you want to build along, here's the bill of materials:"

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Vintage Moog 921A driver, 3x 921B VCOs with PSU

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.

"Four classic mid-seventies modules: one 921A Oscillator Driver, and three 921B Oscillators. Complete with an International Power switchable power supply (now more commonly badged Power One) and a wiring harness / loom wired for five modules - the four 921s here, and a fifth module - until now, the 904 in the previous lot. ***This will need encasing***, and of course the modules will need to go in a simple case or an existing cabinet. In very nice cosmetic condition, and working well. Bought by the current owner in 2003, and since lightly used in a non-smoking home studio. The power supply has a standard IEC mains socket and fused switch with power light. The fuse will need to be changed if the voltage is switched from USA, where it is currently located."

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URSA MAJOR SST-282 SPACE STATION + KORG POLYSIX

video upload by Synth Tailor Electronics

"Here’s a URSA MAJOR SPACE STATION SST-282 that was just restored here at the shop. These sound so amazing and I hope I find one for my studio someday. They’re like having a Roland space echo without the tape/noise and sound incredible!

When it arrived, it wasn’t outputting any delay/reverb signals at all.

Repairs done:
-Found 3 blown Tantalum caps, replaced with new Tantalum caps.
-Rebuilt PSU (had leaking Filter capacitors)
-Replaced stuck/broken Power Switch
-Replaced all bad electrolytic capacitors and tantalum’s throughout.
-Replaced a bad RED square LED
-Replaced faulty/old ribbon connector and installed a machined 16 dip socket"

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.

I asked him if it would be OK to capture the pictures here as I've never seen the "matrix pump" before. He gave me the all clear. Note this is the first post to feature one. This is a rare piece of synth history.

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

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ThereItIsAgain (Live)

video upload by Downpoly

"Live music from the TRS-80 Model 4s, Orchestra-90 and MIDI/80. Using the S2 Wavetable card on the MIDI/80 to create some surreal backing tracks, complimented with the Orchestra-90 through some wild pedals.Live music from the TRS-80 Model 4s, Orchestra-90 and MIDI/80. Using the S2 Wavetable card on the MIDI/80 to create some surreal backing tracks, complimented with the Orchestra-90 through some wild pedals."

"The MIDI/80 Tracker program got much more feature-complete in recent weeks! By now, it not only allows sequencing of drum patterns, but of arbitrary monophonic MIDI instrument tracks (e.g., for bass, melodies, arpeggios etc.) With 6 tracks, it is polyphonic and multi-timbral, and can now support creation of entire songs. Whereas the first Tracker only offered one pattern, the new Tracker 1.95 can now manage up to 26 individual patterns, named 'A' to 'Z'. The workflow allows for pattern copying, i.e., to enable a musician to quickly make variations to a pattern simply by copying it and modifying bit and pieces. Moreover, each pattern has it's own settings, like tempo, number of bars, and on a per-track-basis, MIDI channel, MIDI instrument, and MIDI velocity. Like in a traditional arpeggiator, a GATE DURATION parameter determines the duration of the notes. Gate Duration can be configured on a per-track-per-pattern-basis as well. Most importantly, the new Tracker now features a "Song Mode" which allows for pattern chaining! A song can have up to 64 (pattern) entries - it is simply denoted as a string of pattern designators (like "ABBACAB*", where "*" means loop the song, and "." ends it). Moreover, real-time tracking is not only supported via the TRS-80 keyboard, but also over a MIDI keyboard connected to the MIDI DIN IN socket of the MIDI/80 card. MIDI notes can be quantized in realtime. MIDI/80 project member "DOWNPOLY" is now using this enhanced Tracker and the new Song Mode of the program to create much more complex backing tracks for his stunning Orchestra Sound Card Live Performances. The Orchestra Organ program by George Phillips is used as the solo / lead instrument, and MIDI/80 + Tracker is doing the background tracks.

As usual, the updated software can be found on the Github and can be downloaded free of charge: https://github.com/lambdamikel/MIDI-80"

Yamaha TX816 w/ Beetle PR-7 Programmer SN 001023

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.

Yamaha TX-816 FM Rack Synthesizer (8 DX-7s in a rack) with Beetle PR-7 Programmer The Yamaha TX816 is a monster of DX and FM digital synthesis. It is a unique system in that it is a rack unit that could take up to eight TF1 modules. A TF1 module is basically a DX7 condensed down to a single circuit board with almost no front panel controls. Definitely designed for use with external hardware and software controllers, the TX816 allows you to easily carry around up to eight DX7s! Software such as MOTU Unisyn, Emagic SounDiver, or even another DX7 can be used to program the sounds in each module via MIDI. This unit contains eight TF1 modules. A TF1 module is basically a DX7 condensed down to a single circuit board. Each TF1 module consists of a 16-voice, 6-operator digital FM synth engine. So this complete TX816 with all eight TF1 modules offers up to 128 voices and 48 operators! Each TF1 also features an independent audio out (XLR) and MIDI I/O for a total of eight audio outputs and MIDI I/O's. It also has one global MIDI in/out port with 8-part multitimbrality, but no common stereo or mix output. The TX816 is fully compatible with all other DX synthesizers including Native Instruments FM7 software-based plug-in. You can use the TX816 like it's eight seperate DX7s or mix and pan each module together to layer your sounds into one monstrous DX powerhouse!

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1984 Roland Juno-106 61-Key Programmable Polyphonic Synthesizer w/ New Voice Chips (Recapped)

Note: Auction links are affiliate links for which the site may be compensated.

via this listing

Additional SYNTH CITY Listings

"1984 Roland Japanese-issue JUNO-106. This one has been serviced along with all new voice chips from Analog Renisance (AR80017). Power supply has been recapped along with an upgraded 3-prong IEC socket for the AC power cable. Fully calibrated and factory presets have be restored. Amazing example of an iconic synth, showing the perfect amount of vintage charm."

SN 461528

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Portabellabz/SaModular 208p Buchla Music Easel Clone

Note: Auction links are affiliate links for which the site may be compensated.
video upload by no talking

"music easel - first patch

208p w/ Portabellabz ToolBox"



via this listing

"Hand-Built Buchla Easel by Constantin (Portabellabz)

This setup was meticulously hand-built by Constantin at Portabellabz, with all components in perfect working order.

Price: $8,000 USD (equal to my original investment). I’m open to reasonable offers.
Location: Portland, OR. Local transactions are preferred, but I’m willing to ship if necessary.

Feel free to ask any questions—I’ll do my best to provide detailed answers.

Modifications and Features

208p Module (with Blue PCBs)

Flat red LEDs
Tinijax connectors
1.2V/oct input
On-off-on switch for CO CV
Reverb mix CV input (replacing the rightmost pressure socket with a black banana socket)
Dedicated LPG outputs (replacing panel signal out tinijax sockets)
Infinite sustain functionality
Noise generator (similar to the 208c; accessible via LPG2 when the routing switch is in the top position and the preamp is unpatched)
Enclosure Features

SAmodular 2x4U enclosure
Dual 1/4" audio output jacks
Gate minijack input with Buchla pulse generator
1V/oct CV minijack input
Additional Components

Portabellabz ToolBox: Includes slew limiter
Roland Klinkenberg Sequencer Aux Expander: Includes Mod Expander
Custom Hard Case: Custom made by Road Cases USA
Rare SAmodular Keyboard and Case

The 218 keyboard and case are from SAmodular, with specific modifications by Constantin to ensure peak functionality. Note that the keyboard is no longer in production, making this setup particularly unique and valuable.

This is a beautifully customized Buchla Easel, built and modified by one of the most respected names in the field. Don't miss this opportunity to own a one-of-a-kind instrument."

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Introducing Keybuss: The Keystep Pro Eurorack Expander by MinMax Modular

Press Release follows:

Stockholm, Sweden – MinMax Modular is thrilled to introduce Keybuss, a Eurorack expander module that opens up many possibilities for Keystep Pro users. Designed for both live use and permanent installations, Keybuss features easy connection utilizing 2 HDMI cables to provide a buffered connection for every one of the Keystep's CV outputs, as well as many more features to streamline your patching. Gain access to all of the hidden CV sources, control the Keystep from the modular and spread MIDI around using the 3 X MIDI multiple.

Available now from €280 from www.minmaxmodular.com

KeyBuss

KeyBuss is a combination Eurorack module and dual plug-in boards for the KeyStep Pro. It uses 2 HDMI cables to connect to the module and offers easy access to every socket on the panel as well as all the clocking options (In and out). KeyBuss is fully buffered with very accurate and beefy opamps, and includes a 1:3 midi multiple for distributing signals within the system.

KeyBuss Features:

Comprehensive Signal Access: All CV, trigger, and gate signals, along with a selectable MIDI output, are accessible through the module. This includes clock options that typically require splitter cables.

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Baloran The River

Note: Auction links are affiliate links for which the site may be compensated.

via this listing

"Baloran The River, in perfect technical and cosmetic condition. Lightly used in a smoke-free home studio. Includes the original manual, flight case, and a spare voice card.

This is an extremely rare analog gem, with very few units ever made. It breaks my heart to sell it, but I simply don’t have the space—it’s a big instrument!

The listed shipping cost is an estimate; the final cost will depend on your preferred shipping method.

TECHNICAL SPECS

100% subtractive analog synthesis with discrete components
Polyphony with 8 voices, each voice card being a changeable physical card.
2 VCO, 1 VCF, 2 envelopes, 1 VCA, 1 LFO per voice, hardware routing for the modulations.
All components are operated while the instrument is switched on. Adjustments of micro-voltage taking into account the temperature insures the accuracy of the instrument.
Complete multitimbrality: 8 channels with free voice/channel allocation.
Wide-ranging management of the expressivity: aftertouch channel, pseudo aftertouch polyphony, attack AND release velocity.
High-end TP/8 5 Octaves Fatar keyboard.
Complete management of outputs / inputs by layer: 4 simultaneous layers allowing to create complex areas, to control the MIDI and USB inputs, to drive the outputs for MIDI, USB and the 16 CVs and 8 Gates.
CHORD and HOLD modes.
One intuitive sequencer per layer (4 notes, 48 steps polyphonic). Recording step by step in real time. Transposition of play.
One arpeggiator per layer, numerous motifs and parameters. Transposition of play.
Control of the external MIDI clocks and REAL TIME messages.
Simplified connection with software programs (MIDI and USB).
Complete bidirectional transmission of all the sound commands (CC and NRPN).
Advanced MPE compatibility with the configurable control of all the axes.
CV LFO to add a modulation to external analog devices used under power.
Effects: Analog Triple Chorus / Flanger + digital Echo / Reverberation. 100% analog pathway. Storage of the sound settings.
Storage of 160 SINGLE programs, 40 MULTI programs carrying over all the parameters, including the current programs, effects and profile parameters, 40 effects programs, 10 profiles of combined layers. Backup and restoring through SysEx on USB.
2 pairs of stereo XLR and TRS 6.35 jack outputs.
8 individual outputs TS 1/4" jack.
1 headphone output 1/4" jack (front side) with dedicated potentiometer.
1 pair of audio stereo input TS 1/4" jack routed to the effects section.
16 CV outs and 8 Gate outs (1/4" jacks)
3 MIDI In, Out and Thru 5 pin DIN connectors.
3 USB type B ports for MIDI driving through USB and update of the operating systems.
2 inputs Contacts Pedal and 1 entry Expression Pedal.
Electricity requirements: 120VA. IEC filtered socket.
Dimensions (L x W x H): 104 x 52 (radiator included) x 20 cm.
Weight: 26 kg.
Flightcase : 110 x 60 x 30, 15 kg"

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AMSynth's Introduces the AM1013 Octave Fixed Filter Bank - Band Pass Perfection

video upload by AMSynths

"AMSynth launch the next 'lost module' of the ARP 2500. Eight 12dB fixed band pass filters in parallel, each with a nice gentle resonance. Individual outputs, mix outputs and a bypass feature. Perfect for post processing sounds, More resonance can be dialed in with VCA module feedback loop that uses the dual inputs and outputs."

"This 14HP module is a re-imagining of the ARP 1013 octave filter bank that was announced in 1970 by Tonus as part of the 2500 Synthesizer, but it never made it into production. It consists of eight band pass filters with their cutoff frequency spaced one octave apart, from 63Hz to 8kHz.

The filter is very useful for creating formant and vowel sounds. The individual outputs enable voltage control of the filter by using eight external VCA's - for example the 1032 Mixer & Distributor module.

The AM1013 is based on contemporary Op Amp based filter bank designs, such as the EMS Eight Octave Bank from April 1971. It uses a 12dB high pass filter in series with a 12dB low pass filter to create eight band pass filters that are connected in parallel and set one octave apart. The filters have a fixed frequency and Q of 5.0.

The eight filter outputs are mixed into a single output with two jack socket. Each filter can be adjusted for level using the ARP 2500 style control knobs. The input and output levels can also be adjusted using the front panel potentiometers.

High quality WIMA polypropylene capacitors have been used to ensure a beautiful sounding filter. The filter has a bypass feature which can be set using the push button switch (with green LED). The wide frequency range from 16Hz to 8KHz, Q of 5.0, individual outputs and high quality sound make for a unique module that takes its heritage from 1971.

The 1013 pairs nicely with the 1032 Mix & Distributor module, where each band pass filter output is patched into a VCA, enabling time domain mixing of the fixed filter sounds."

Gijs Gieskes WD80 Solar Powered Touch Synth

video upload by Gijs Gieskes

via gieskes.nl

"A solar powered synth where the solar power is integrated into the interface.

The WD80 refers to WD40, my French neighbour made the joke that it sounds like it needs WD-40, so i decided a good name for it is WD40 (i changed it to WD80 because of personal reasons and because WD40 is copyrighted).

The idea behind this synth is that you power it from the sun, but that the power is not just providing power, but it also acts as part of the interface. When there is less light the voltage goes down and then the frequency is also going down. When you use the synth you can walk around and for instance a tree above you will make a shade with allot of branches, this will give nice modulations in the sound especially when the wind blows a little bit.

It is using resistive touch contacts, so you can turn on the sound on the left side with one finger and the sound of the right side with another finger. There are two switches to turn on the left and right side on permanently, but it will be less loud then when you touch it. it will also be a little low pass filtered it seems when the switches are closed. So then when you touch it the osund will be louder and teh lowpass with be gone while you touch it.

The potmeter starves the power of the IC (HEF40106). The socket is a DIP socket so you can also try other versions of the 40106 series, for instance the CD40106, it might sound different.

The circle is connected to a oscillator that runs by itself, it is not directly connected to the output, but it somehow effects it allot.

The 4 lines are connected to 2 schmitt trigger circuits of the 40106, the center two lines are connected to the outputs of the schmitt triggers.

The output can drive headphones, there is no volume control so if it is to loud for you or the volume is to low you can use other headphones. I am using Sennheiser HD480ii.

For use in concerts you can use a halogen light to power the synth, and because it uses you bodies resistance to transfer the sound you can get hum (50hz or 60hz). To reduce this hum you can use a hum reducer that i am also selling."

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rare birds: Dynacord Magic 370 spring reverb [& Korg Mini Pops 120]

Note: Auction links are affiliate links for which the site may be compensated.
video upload by ohm_studi_ohm

This appears to be the first one to be featured on the site.

"this is a quite rare spring reverb built by Dynacord in the late 60s. As minimal as it can possibly be: a black box with only a socket (input/output) and a gain level. Not even a power switch ! This particular unit was fully recapped and it sounds very nice, deep but quite bright for a spring reverb. Tank is a Accutronics one and electronics is only transistor based. The pot is not a blend pot but a gain level. As you can hear you can get the unit to overdrive quite easily. You need to set the unit as an aux to your mixing desk or soundcard. If you plug an instrument directly you will get wet sound only. In this demo it is connected to a RME babyface as an aux, and I used a Korg Mini Pops 120 (btw for sale here: https://www.ebay.com/itm/305744488287) and a Roland SH-101 as source materials"

via this listing

Note the listing is for the Minipops only.

"classic Korg Minipops 120, the last drum machine from the Mini Pops serie. Unit was serviced, partially recapped and calibrated. It's in fully working order. Unit was also slightly modded: the balance knob which originally acted as a kind of EQ (boosting bass on the left side and high on the right side) is now acting as a HI Hats / Cymbal volume (like it should have IMO) so you can totally dialed off the hi hats / cymbal and it allows for more rhythmic variations, perfect for those breaks."

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Crumar Bit-One (HKA Midi Upgrade) SN 00613

Note: Auction links are affiliate links for which the site may be compensated.

via this listing

"Such a sweet sounding synth, really nothing quite like it! The Crumar Bit One is a main stay of synth-waver Com Truise, but its true roots belong to Italo Disco. With two DCO's it really is on par with the Juno series (if only it had sliders and that slick chorus). Two LFO's and Envelopes round out this beast to make a superb piece of kit.

Sadly, the Bit One fell far short of glory in the midi department, but this has been remedied by the installation of the HKA midi kit in this unit. This upgrade does the following:

Local keyboard and external MIDI can be used at the same time - plugging a cable into the MIDI IN socket no longer disables the local keyboard. Local control can be turned off in setup mode if desired.

Receiving channel for external MIDI can be set on the synth itself, and is remembered on power-off. (Transmitted MIDI channel is fixed on channel 1)

MIDI handling is much more reliable. The board filters out all other channels before they get to the main CPU, also ignoring any messages that it cannot use, so there are no more MIDI overload-caused crashes, stuck notes etc.

Now receives MIDI pitch bend (±2 semitone range) and mod wheel. MIDI mod wheel is provided by a dedicated LFO, independent from the Bit One's own two LFOs. The modulation depth can also be controlled by MIDI channel aftertouch.

Receives MIDI sustain pedal (CC 64), which is used to control the Bit One's hold functionality.

Adds an arpeggiator with up, down, up + down and random modes. (Requires an external MIDI clock source such as a drum machine)

The Bit One also has some trouble with memory and battery longevity. This unit saves patches 10-60, and some are blank. I have programmed the blank patches and had success saving them, but perhaps it is worth replacing the battery on this unit (its probably pretty old anyway).

While the lighting in the photos makes this particular Bit One look a little crusty, natural light does wonders and this unit is in tip top shape, a real gem. It has been well taken care of. The keys are a little yellow as well, but I've seen worse.

The headphone output is a little noisy, but the main outputs are clean as a whistle. You know, the outputs the do the heavy lifting."

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EMS Synthi AKS & Extras

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via this listing

"Rare transition example that has been used but very well looked after - supplied serviced and ready for use. Recent extensive servicing and modifications by Europe's premier EMS tech to create what we consider to be the ultimate Synthi AKS. All features are fully working and expertly calibrated. Includes many extras and upgrades (see description for full details). This is the AKS to buy if you want the maximum possible sonic options...

EMS Synthi AKS for sale in perfect working order - highly modified to be the ultimate AKS with an even greater range of sonic possiblities over a standard Synthi.

It comes complete with the following accessories:

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