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Jindrich Vavruska OK4RM

Interested in electronics, ham radio, philosophy. Recently studying and discussind Sufficiently general theory of governance (DOTU). Amateur radio callsign OK4RM, ex OK1FOU, ex OL4BEV.

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  • Prague, Czech Republic
  • Member for 3 years, 2 months
  • 5 profile views
  • Last seen Mar 13 at 17:36

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