This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
International graphic symbols of current source. International gebruchliche Schaltsymbole einer elektrischen Stromquelle German and international graphic symbols of current sources own Arne Nordmann norro Germany Don't hesitate to ask me for uploading this drawing with captions in your language File International symbols of current