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H05G1/70—Circuit arrangements for X-ray tubes with more than one anode; Circuit arrangements for apparatus comprising more than one X ray tube or more than one cathode
Vorrichtung, um an den Abnahmestellen eines Verbrauchers, z. B. einer Roentgenroehre, der an eine Stromquelle mit veraenderlicher Spannung angeschlossen ist, die Spannung mittels einer Gluehkathodenroehre konstant zu erhalten