DIN 44402-7:1973-06 Measurements of the electrical properties of electronic tubes and valves; methods of measuring hiss and hum

标准编号：DIN 44402-7:1973-06

英文标题：Measurements of the electrical properties of electronic tubes and valves; methods of measuring hiss and hum

德文标题：Messung elektrischer Eigenschaften von Elektronenröhren; Meßverfahren für Zischen und Brummen

发布日期：1973-06

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