SEIKO DS-250 strange additive synth vintage 80s

via this auction

"SEIKO DS-250 is digital additive synthesizer
it's extremely rare and most strange japanese digital synthesizer
made by SEIKO(world famous watch&clock company) 1985 Japan

DS-250 was used by Jean Michel Jarre

very limited quantities were made
so i'ts very hard to find even in Japan nowadays...
this is your first and last chance to get this vintage bizarre synth!

in '80s,only very few and super expensive synth has additive synthesis function
such like FAIRLIGHT CMI,Kurzweil K150..
then SEIKO released this additive synth DS-250 into market
why famous watch&clock company did made synthesizer?
I don't know but this synth is really cool and strange instruments!

DS-250's sound is very unique and original it's none like other digital synth same time(DX7 etc)
it reminds me KRAFTWERK's synth sounds these days(tour de france,expo 2000)
beautiful clear and exotic additive digital sound,bit like today's additive synth KAWAI K5000

SEIKO DS-250 has 2 independent sound section
both sound1 and sound2 has 16 sounds and each control section
volume,sustain,pitch modulation(including delay mode switch)
and each MIDI channel selector on side panel

you can use these two sound section in 3 modes
normal,key split and sound mix
in sound mix mode,you can creates more complex sound using two sound section

and you can control harmony and detune with cool 2 color LED bar
it add more unique and rich harmony to your sound

internal chorus effects add unique spacy stereo chorus to sound

it also has key transpose and pitch bend wheel and internal stereo speakers

two side panel has MIDI IN/OUT/THRU,sound1 & sound2 separate output,midi channel selector
pitch,phone out,stereo output,mono output,sustain,expression,AC jack.

SEIKO DS-250 has expandable with two expander unit called DS-310 and DS-320(both not including this auction)
DS-310 is a programmer for additive synthesis
it allows you to creates additive synth sound from scratch
using big LCD display and slider,super cool unit!
DS-320 is a digital sequencer
so SEIKO DS-250 has connector for these units on the back panel

item is used good condition and working
comes with original AC adaptor,no manual

this is japanese 100V product,so you need voltage transformer to use in your country."

RED DARKSTAR 8 VOICE POLYPHONIC DIGITAL SYNTHESIZER

via this auction
"Analog sounds are created by DSP-based analog modeling which means you'll get reliable and clean analog-type synth sounds in a professional instrument. The Darkstar features 2 oscillators per voice, 5-part multitimbral set-up, joystick mixing for oscillators, ring modulation, filter resonance and pink/white/blue noise generators. There are 14 knobs, all of which transmit MIDI data and provide instant hands-on access to the filters and envelopes. The two LFOs and two envelope generators provide plenty of modulation abilities for the oscillators, pulse-width and filter. The filter offers high-, low- and band-Pass filtering with a 12dB/oct slope. Includes AC Adapter and maunal. See photos for more details!

Features:
* Polyphony - 8 voices
o Oscillators - 2 per voice (Osc 1: continuously variable between Sawtooth and square/pulse; OSC 2: Formant or pink / white / blue noise); hard sync-able
* LFO - 2 with separate speed and delay controls (Ramp, Triangle, Square, Sine, Pulse, Sample & hold, Random waveforms)
* MIDI sync-able
o Effects - Auto-Panning, Tremolo, Fixed frequency Ring Modulation, Portamento
o Filter - 12dB/oct resonant with low-, high- and band-pass
o Keyboard - None
o Memory - 64 patches
o Control - MIDI (5-parts)
o Date Produced - 1999"

Roland MC-202 Analogue Synth with Original Box

via this auction

"The MC202 is a sequencer and monophonic analogue SH101 style synth with 32 micro buttons arranged like a standard keyboard. This Roland unit Includes a 2 channel sequencer- With 2 sets of CV/Gate connectors on the back of the unit—This allows the unit to control another Synth that contains a CV input. It is designed as a monophonic analog synthesizer similar to the TB-303 but without the “accent” IT contains a Curtis CEM - 24dB Low Pass filter. Unlike the 303."

Hielo Patagonia Sounds Cwejman MMF-6 Based Sample Pack

Cwejman Acid - MMF-6 module demobyhpsounds
"Analog modules used | Used Eurorack modules analog
# 2 x TipTop Audio Z3000 oscillators TipTop Audio Z3000 2 x oscillators
# Malekko/Wiard Borg Filter 2, in Low Pass Gate mode Malekko / Wiard Borg Filter 2 in Low Pass Gate mode
# Cwejman MMF-6 filter, in soft saturation mode Cwejman MMF-6 filter, in soft saturation mode
# Malekko/Wiard Envelartor Malekko / Wiard Envelartor
# Bananalogue Serge VCS Bananalogue Serge VCS
# Cwejman VCA-2P Cwejman VCA-2P"

Download on Hielo Patagonia Sounds here. Googlish translation here.

Roland Juno-60

via this auction

Synthsong a la Tangerine Dream, like old Berlin school

YouTube via Synthiefrau — May 06, 2010 — "Hi my lovely Synthfolk, this is a new song for my lovely boyfriend "Jürgen", he is soooo sweet and he like Synths;-)))(this is importent for me (LOL)

I work with the sequenzer of the Synthesizers.com modular, the leadsound comes from the Minimoog, effects comes from the Doepfer Dark Energy and the noise comes from the good old Juno 60. Percussionssound is a sample
from the Alesis SR-16. Synths. Welcome tho the analogue sound universe"

Moog-style highpass voltage controlled filter

YouTube via abovenyquist — May 06, 2010 — "Project for Spring 2010 "Electronics for Music Synthesis" class at Georgia Tech. See here for more info:

users.ece.gatech.edu/~lanterma/ems10"

BBD-based flanger, on the breadboard


Buchla 291 bandpass filter circuit, on the breadboard


You can find all videos in the series in this post.

DSA-Ext_trg-CV.mpg

YouTube via magicmodulator — May 06, 2010 — "sample and hold use to control the mighty Dub Step Arcade console via its external inputs"

Squidfanny - 1980's 'CRASH BOX' Sound effects toy

YouTube via squidfanny — May 06, 2010 — "Original first generation Black Blob device. Note the mis-spelling of 'DRAULA' noise.... I wonder how many thousands were produced before someone noticed!

This one was sold under the title 'CRASH BOX', with the slogan 'Don't get mad, get even!'. It came with sticky pads for fixing to a car dashboard, presumably so that angry motorists could hurl electronic hand grenades at each other..

Just added a pitch knob and an audio output. Might integrate into a drum machine at some point though.

+Thanks so much Wendy for finding this lovely piece of treasure for me :-))+"

Roland TR-606

YouTube via WISSJE — May 05, 2010 — "Roland TR-606 player through a stylophone. Just to show it works for ebay, shot on my iphone."
Roland TR-606s on Ebay. Remember to include you auction numbers in your video descriptions.