MATRIXSYNTH

Tensai rhythm machine, 80s boombox with drum machine

via this auction

"This is a really odd item, can't find any info about it online!?

So what i can tell you is: it's a 1980's boombox with built in analogue drum machine!

I've recorded the output here so you can get an idea of the presets:
http://soundcloud.com/maily/tensai-rhythm-machine

This device can also be used as a 2 track recorder, featuring a guitar and mic inputs.

I think this could make the basis of a really interesting circuit bend or just a super unique addition to the collection of a drum machine/ 1980's/ analogue recording enthusiast.

More photos here"

Update: some additional info via Jan:

"this boombox was also distributed in Germany under the "Lehnert" brand and was called the "Lehnert Studio-5000". My parents bought one in 1978 or 1979, I can't remember exactly. I tried to find more information about it and the company in the web a while ago, but alas no success. And my mother threw hers away some years ago…

More pics on [via this auction]

Judging from the German labeling with the correct Umlaut usage, and the more detailed description of the device's functionality on the lower left of the German front panel (compared to the English Tensai version), I assume that "Lehnert" might be the original (German? Austrian?) manufacturer.

More pics of the machine's guts: [link]

On [link] you can see the manufacturing date of the tape motor is 1977.

The 2 way speaker system sounded really nice, the rhythm section allowed pressing multiple buttons simultaneously to combine rhythms, the external input allowed to use it as an amp for my first synthesizers (Casio VL-Tone and Korg MS-20), and you could use is as a limited 2 track recorder. I had a lot of fun with it 30 years ago."

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Pugix in Pen Park

YouTube Uploaded by opallypovar on Mar 25, 2011

"Richard Brewster does electro-busking with his synthesizer in Pen Park. Alas, no one was there."

::vtol:: Garmonbozia x3

YouTube Uploaded by Vtolus on Mar 27, 2011

"more info about Garmonbozia - http://samoletuvvp.narod.ru/vto/diy/garmonbozia.html"

Sad Synthesizers.com Quantized Chords from the Tip Top Z8000

YouTube Uploaded by MrRitchieDrums on Mar 27, 2011

"The 4 horiontal steps from the Z8000 sequencer are going through Synthesizers.com Quantizers to 4x Q106 VCOs, then a Mattson Mixer & filter to create chords. The 16 step vertical Z8000 steps are receiving a rotated & skipped clock from the 4MS multiplier & going to a COTK quantier to 2 BlackJack VCOs, then to the STG Mankato filter. The Blacet Binary Zone is sending divided clock to my MFOS rotary sequencer which is sending CV to the MOTM e340 generating clouds to the EHX memory boy delay"

Roland MC-202 MicroComposer

via this auction

Creamware Noah Analogue Synth Emulator

via this auction

"Want a Mini Moog? Want a Sequential Circuits Pro One? Want a ARP Odyssey? Well there all in here and sound fantastic. This is the extra powerful EX version with the latest software.

As Creamware no longer exist and the Noah is not officially supported, all other Noah instruments are now avalable for free and include the Korg Wavestation alike Vectron, and the Prophet 5 emulation, Profit 5.

This one already has the following instruments installed

B-2003 - Hammon Organ emulator

Interpole Filter Bank (Noah has stereo inputs for running any signal through it)

Lightwave Synth

SixString - guitar modelling synth

Minimax - Mini Moog emulator

Pro One - SC Pro One emulator

Vectron player - Wavestation alike sounds but not fully editable

Vocodizer - Amazing vocoder

Prodyssey - ARP Odyssey emulator

EDS8i - Analogue Drum Machine emulator

It's all USB and editable via a computer and will come with a partial manual (all instrument manuals are availble online) and the software disc (although that's available online too). I'd recommend the following forum for info about how to get and install the instruments it doesn't already have.

And here's some links that tell you more about it

http://www.sequencer.de...

http://www.soundonsound.com..."

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Mutable Instruments Shruthi 1

via this auction

"Here Is a Mutable Instruments Shruthi 1 Analog synthesizer kit. It has been hand built by a professional and has the latest firmware. This synthesizer is a monster! With all analog filters and envelopes with digital waveforms it makes for the perfect synthesizer. The OS is constantly being upgraded, adding new features and better performance. These are very hard to get, as they only make about 30 of them every 3-6 months. This has the included case and will be ready to play when you receive it in the mail. Buying this kit from me is a great decision because if you do not have the time or the skills to make it, you can be assured to still get a quality build without potentially damaging the kit.

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M-Z3R0 - circuit bent 'NOTHINGSTAR' synthesizer

via this auction

"Fitted with pitch control, distortion, M-Z3R0 death industrial delay circuit with filter, rate and feedback controls, pitch LFO with rate and depth control and atari punk console square wave oscillator.

Modified to the extreme, this beast can kick out an unlimited amount of glitching, noise and mayhem.

it has loads of internal sounds which can be mashed up with the embedded circuitry i've added as well as merged with the APC square wave for dual oscillator tones.

I've used one of these for some time to create hundreds of drum samples and bizarre incidental sounds.

This is a machine you'll have a lot of time for whenever you require something a bit crazy to drop into your tracks. You could pull off an entire power electronics set using this machine alone.

Don't be fooled by it's cute appearance. Make no mistake, these things are beasts :)"

YouTube Uploaded by manufacturedZ3R0 on Feb 2, 2010

"Quick demo of another modded lo-fi machine. Delay with feedback, rate and feedback filter, LFO, atari punk console square wave oscillator, extreme pitch and distortion.

Massive source of weird and nasty samples and a cool bit of kit for live noise sets and power electronics based projects.

If you're on facebook and vaguely interested in any of this. Look up manufactured-Z3R0 for updates on what's under construction, being messed with and researched and what's up for sale."

Circuit Bent Talking Teacher

via this auction
"includes these mods:
2) glitch switches that create random sounds
1) loop with advance switch for Tone/Beat Looping
1) fuzz/distortion switch
1) reset switch
1) 1/4" output jack

with volume control
1) super slo-mo depth pot (the pitch can be slowed down to sputtering bits or sped up like a chipmunk for awesome sound effects and lo-lo rumbling bass)
1) optical sensor (for theremin type of work and other far out sound drops) just wave your hand over the lens, there is a switch that turns the optical lens on/off."