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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 2 years, 8 months
  • 4 profile views
  • Last seen Oct 10 at 10:04

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