Electronica EM-25 Analog Synthesizer Strings, 1980, made in USSR | Электроника ЭМ-25, 1980, made in USSR

Link: ruskeys | documents

Electronica EM - 25 is a synthesizer-strings that has 3 timbre sections: stringed - contrabasses, violoncellos, violins, organ-registers ("16'","8'","4'","2'"), wind-trombones, trumpets.

Stringed and organ sections:

• polyphonic attack and release of sound with duration control
• switching decay mode
• 
  
• Wind instruments section:
• generator of curved with controls: ATTACK, DECAY, SUSTAIN.
• modulator with controls: RATE, DELAY, VIBRATO
• controlled filter with controls: ENVELOPE, MODULATOR, CUTOFF, ACCENT
• filter run mode -mono or polyphonic 

There is also a possibility to split the keyboard to 2 section (with setting up different timbres of sounding)