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Ohio Scientific Challenger 4P Gallery

  502 top 502 underside 540 detail 540 oblique 542 detail 542 top back panel left back panel right  

  backplane1 backplane2 backside improved c4ptb c4ptb2 cleaned up keyboard mess of wires nopsu  

  oldpsu on screen overview psu improved running again runningbasic screen garbage side view improved  

  side view softwarehaul softwarepages1 softwareprimer tapes top view improved workbench  



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