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・ 894 Naval Air Squadron
・ 894th Helicopter Reconnaissance and Liaison Squadron
・ 895
・ 895 Helio
・ 895 Naval Air Squadron
・ 895th Helicopter Reconnaissance and Liaison Squadron
・ 896
・ 896 Naval Air Squadron
・ 896 Sphinx
・ 8967 Calandra
・ 896th Helicopter Reconnaissance and Liaison Squadron
・ 897
・ 897 Lysistrata
・ 897 Naval Air Squadron
・ 89735 Tommei
8974
・ 897th Helicopter Reconnaissance and Liaison Squadron
・ 898
・ 898 Hildegard
・ 898 Naval Air Squadron
・ 898th Helicopter Reconnaissance and Liaison Squadron
・ 899
・ 899 Jokaste
・ 899 Naval Air Squadron
・ 899 Old Thorn Run Road
・ 8990 Compassion
・ 8991 Solidarity
・ 8992 Magnanimity
・ 8993 Ingstad
・ 89FM (Auckland)


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8974 : ウィキペディア英語版
8974

8974 / X-2159 is a power tetrode designed for megawatt power levels in industrial and broadcast applications.
== Specifications ==

The 8974 is an external anode tube made of metal and ceramic. It has an overall height of 23.75 inches (603 mm), a diameter of 17.03 inches (433 mm), and weighs 175 pounds (80 kg). It contains a directly heated thoriated-tungsten filament rated at 16.3 volts at approx. 625 amperes. The anode is designed to dissipate 1.25 megawatts, approximately 1700 horsepower (1.25 MW
* (1341 hp/MW) = 1676 hp). The tube may be operated as a class C amplifier, where a single tube with an anode voltage of 22.5 kV DC can provide up to 2,158 kilowatts of RF power. 〔 Data sheet for the Eimac 8974 / X-2159 〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「8974」の詳細全文を読む



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