Wechselrichter in den 30gern.
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13:06
Netz-Spannungsschwankungen!
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26:06
Das ausgemusterte ungerichtete Funkfeuer (NDB), Teil:1
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20:01
Jeneratör olarak üç fazlı bir motor kullanın
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24:42
Wie repariert man Wechselrichter. Teil 1
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18:56
Projekt 1 - Einfache Aktivantenne
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13:10
Die erste Datenübertragung (1969)
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20:56
Madeni paraların bu sırrını pek çok kişi bilmiyor! Çok kullanışlı
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26:13