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Estradin-230

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Description
The Estradin-230 is a 3 oscillator monophonic analog synthesizer produced in the USSR from the early 1980's until 1985 by Elektroizmeritel military factory in Zhitomir. The Estradin-230 was the forerunner to the Altair-231 which shares the same architecture and functionality. The Estradin factory changed the instrument`s casing and renamed it Altair-231.

The instruments offers a 49 key keyboard with velocity sensitivity. The structure of the synthesizer is 3 oscillators with oscillator 3 as a modulator, a white and pink noise generator and external audio input as additional sources. It features a 24db/oct lowpass voltage controlled filter and voltage controlled amplifier. 3 LFO generators, glide and a pitch wheel. The Estradin-230 was the Russian answer to the Minimoog.
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Technical Specifications
Type: Analog
Synthesis: Subtractive
Oscillators
Oscillators: 3
Waveforms: Pink Noise, Saw Up, Triangle, White Noise
Osc Modulation: Input, Knob, LFO, Velocity
Envelopes
Envelopes: 1
Evelope Paramerters: Attack, Decay, Sustain
Filters
Filters: 1
Types: 24dB Slope (4-pole), Low Pass, Resonance
Filter Modulation: Knob, LFO
LFO
LFO: 1
Polyphony & Tuning
Polyphony: 1
Timbrality: 1
Tuning: Standard
Modes: Mono
Patches
Patches RAM: 1
Case
Case: Keyboard
Keyboard: 49 keys
Controls: Modulation - Audio Input, Knobs, Sliders
Connections
Audio Output Connections: 1/4" Phone Jack, Mono Out, Mono Headphone
Audio Output Count: 2
Inputs: 1 1/4"
Production
Year Released: 1981
Year Discontinued: 1985
Pricing
Used Price: $699-$1,500 - convert
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