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Ph L. Prfschaltung fr Phasenverschiebung an einer Induktivitt own original text selbst gezeichnet Herbertweidner Feb CET circuit PDrelease Original upload log de Wdwdbot CommonsHelper de PhL Viperch bytes no auf die Version vom Mrz Uhr Viperch bytes no Andere Versionen Viperch bytes no Andere Versionen