Roland MC-4 Micro Composer CV Sequencer Programmer w/ User Manual

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"Original vintage Roland MC-4 Micro-Composer CV matrix synthesizer programmer/ sequencer for orchestrating your vintage analog orchestra! Perfect working condition, with manual, no issues. 100% pure unobtanium."

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Roland OP-8 CV DCB Interface

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"Original vintage c 1980 Roland OP-8 8 voice polyphonic CV/ DCB controller, with cable!

Roland OP-8 is a CV to DCB interface, designed to control Roland polyphonic synthesizers equipped with DCB via the Roland MC-4 Microcomposer, but it works with any other standard CV/GATE Analog Sequencer. It has also multiples allowing creative possibilities.

Roland OP-8 can control the Roland Jupiter 8 cut-off frequency of the VCF and the level of the VCA (expression control)"

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Roland System 100 Model 104 Sequencer SN 490467

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"Original vintage Roland system 100 model 104 analog sequencer module, tested and serviced, in excellent working condition, zero issues. 100% pure unobtanium. Enjoy!"

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Roland System 100 Model 102 SN 691660

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"Original vintage Roland system 100 model 104 synthesizer expander module, tested and serviced, perfect functional condition. Sounds absolutely massive. Enjoy!"

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ROLAND Synthesizer SYSTEM 100 EXPANDER MODEL 102 & 101 Instruction Manuals

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MODEL 102 via this auction

MODEL 101 via this auction

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I love the charicatures. Top with balloons is from the 102, 2nd with keyboard is from the 101. There's one with a tuba below.

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EML ElectroComp 400/401 Modular Synth/Sequencer w/ Original Manual

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video upload by Jim Alfredson

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Yamaha CS40M SN 1905

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"CS40M is 44 keys, highest note/lowest note priority duophonic. It has a luxurious construction with two VCOs per sound, and one each of VCF, VCF-EG, VCA, and VCA-EG. You can also enjoy playing harmony phrases and bass lines/melody lines. Control parameters are 50, the highest in the CS series. Digital memory for up to 20 setting patterns for most parameters, excluding play-only effects. The external stock uses a cassette interface method. In addition to the standard effects, it is equipped with a wealth of special functions such as an LFO trigger SW that can create repeat play signals, and an EG-VCO SW for the LFO and ring modulator sections."

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Yamaha CS-20M

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Pics of the inside below. The YM-615 chip is the keyboard controller according to sounddoctorin.

This one does need work.

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Kaivo Noise Module Overview

video upload by Madrona Labs

"Overview of Kaivo's Noise Module

Kaivo is a software instrument combining two powerful synthesis techniques (physical modeling and granular synthesis) in an easy-to-use semi-modular package. It’s laid out a bit like an acoustic instrument; the GRANULATOR module acts like the player’s touch, exciting one or more tuned objects (here, the RESONATOR module, based on physical models of resonant objects) that come together in a central resonating body (the BODY module, also physics-based).

https://madronalabs.com/

Chapters
00:00 Intro
00:13 Module Overview
01:39 Output Distribution & Width Control
02:58 Peaks Control
03:58 Falloff Control
04:23 Ramp Function
05:33 Output Control
06:00 Auto Switch
06:30 Modulation Inputs"

Mariana - The Moog That Never Was

video upload by Starsky Carr

"Deep Dive ('sea' what I did there ... twice!) into the Mariana from Moog. It's like a synth that should've, but never existed. It feels like an emulation of a real synth rather than a brand new soft synth... because of some strange design choices and limitations. Odd, but rather compelling.

It's fun with Moogerfooger plugins as well."