电子管

• Vacuum tubes require dc voltage sources as well
  真空电子管也要求以直流电压为电源。
• Letter symbols in data sheets for electronic tubes
  电子管数据表中的字母符号
• Molecular absorption spectrophotometry . optical cells
  分子吸收分光光度法.光学电子管
• Blank detail specification for receiving tubes
  收讯放大电子管空白详细规范
• An electron tube having a cathode and an anode
  电子二极管有一个阳极和一个阴极的电子管
• Detail specification for transmitting tube of type fu251f
  电子管fu251f型发射管详细规范
• Detail specification for transmitting tube of type fu101f
  电子管fu101f型发射管详细规范
• Detail specification for transmitting tube of type fu100f
  电子管fu100f型发射管详细规范
• Rating systems for electronic tubes and semiconductor devise
  电子管和半导体器件额定值制
• Specification for tungsten strip for military tube
  军用电子管用钨带规范