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• File:RCA Mark II Sound Synthesizer.png licensed with Cc-zero
  
  • 2011-09-15 14:12 Clusternote 1440x1008 (1866596 Bytes)  {{Information |Description='''{{en|1=RCA Mark II Sound Synthesizer'''<br/> <br/> (designed by Herbert Belar and Harry Olson at RCA Victor]])}} Note: The
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