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Sunday, August 19, 2018

RITM-2 - RAREST SOVIET ANALOG SYNTHESIZER with MIDI

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"It was manufactured by Kirovsky musical instruments' factory in 1980s, designer - Viktor Nikulin. The EMI Ritm 2 is an one-voice keyboard analog synthesizer designed for solo, ensembles and orchestral playing musical compositions of any genre. It can be used both in studio & on live concerts.
Endless possibilities & experimentation.
As a true analog synth Ritm-2 can also play sounds of the other classical instruments (keyboard, strings, reed and percussion instruments). It can also create some specific sounds (wind, noise of surf, train, gun and whine). Using this instrument one can play some compositions with a random pitch and a timbre.

- Sometimes called 'Russian Moog Prodigy', it has 1-osc (plus sub osc), 1LFO, 2 adsr and more.
รข€¢ First section: Portamento/Glissando.
- Modulation section: modulation frequency knob (LFO), OSC section: tuning knob from "-" to "+", modulation switch from saw, tri and random, tone switch from 32', 16', 8' or 4' , modulation level knob from 10 till 2; modulation on/off switch (linked to level knob).
- Mixer section: noise level knob, saw wave level knob, tri wave/rising tri wave switch, level of tri/rising wave.
- Filter section : cutoff freq knob, resonance, modulation switch - choose envelope, tri, wave or random,modulation level knob, keytrack button (between 1/1 keytrack or 1/2); 4 x sliders for adsr envelope.
- Output section: output volume knob, phones volume knob.
- Amp section: switch between single - triggered envelope and repeating envelope, memory knob, 4 x sliders for adsr envelope.
- Connection on the rear panel: on/off switch, power wire connection (220V), fuse (0,25A), Main Audio Output - standard 1\4 TRS Jack. On the front : 2,5 octave keyboard (F-C), to the left of keyboard there are pitch bend slider, modulation wheel."

ELBY-DESIGNS MONOWAVE (X) WAVE-TABLE 2-OSCILLATOR SYNTHESIZER PPG STYLE RACK

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See the archives for demos & more info.

TEISCO Synthesizer 110F analog synthesizer

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Interesting description, lost in translation?:

"Duo was released a domestic manufacturer TEISCO in 1977 follower is an analog synthesizer Nick. In addition to making radical sound to modulate the VCO in the VCO, Filterbank has also been installed, the width of the sound making is wide models. The bottom left of the pressure-sensitive sensor than those who received the license from the ARP, the sensor had been adopted by models such as the Odyssey. Only the main body (AC cable is attached directly to the body)"

YAMAHA CS30 monophonic synthesizer

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KORG DELTA (DL-50) ORGAN-STRINGS Synthesizer

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Doepfer MS-404 Midi Analog Synthesizer SN 951059

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Simmons SDS-2000 E-Drum Module Synth

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Last one to be featured was back in 2009.

Sinusoids


Published on Aug 19, 2018 Chaotic Morphs

"My first tune with my Buchla 208 diy. There are some crosstalk and leakage in the module yet but I hope to solve that. Mono recording direct from the module to the camera. No processing"

RH Electronics Synth Noir - Modular Update


Published on Jul 18, 2018 RH Electronics

All finished so far, still modules and things to build.
The synth has
MIDI to CV
VCO
VCF
VCA
2x ADSR
and the 16 step sequencer

RH Electronics 5 Voice analog synthesizer - Major update


Published on Aug 18, 2018 RH Electronics

"It works! Well one voice does on breadboard.
Up and running are 2 oscillators (CEM3340 based, but using AS3340)
These go to a 4066 switch then the waveforms are mixed, so you can switch on all of them on both oscillators.

The oscillator is based on the Prophet 5 circuit, the voice chip is a CEM3372, which was £35 but worth it, as it has everything, 2 inputs voltage controlled mixer, a low pass filter with cutoff/resonance and a VCA

Then an envelope generator to control the filter and amp (test just the amp)

So one full voice will need
2x oscillators
1x Signal processor
2x Envelope generators
1x CV mixer for the envelope and cutoff (filter only) and LFO CV

Microcontroller will feed SPI DACs that will be the voice and control CVs, but then all the voice circuits are analog."
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