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Si Series

  • Writer: Sugden
    Sugden
  • Nov 6, 2018
  • 1 min read

In the 1960’s and early 70’s J E Sugden manufactured a full set of audio test equipment known as the Si (Scientific instrument) series. We still use these today when designing new products and also for testing production models. They are very robust and battery powered to avoid any mains interference.

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