Then, people did not know that the beautiful sounds of the music from the ampliers made of the electric tubes could not be substituted.
那个时候，人们不知道电子管放大器营造的靓声是不可能被替代的。
A device, especially one using transistors or electron tubes, that produces amplification of an electrical signal.
放大器尤指利用晶体管或电子管使电子信号放大的仪器
These amplifiers have long been made with tiny election tubes.
这些放大器是用微型电子管制成的。
Design of High Fidelity Headphone Amplifier Based on Vacuum Tube WCF Circuit
基于电子管WCF电路的高保真耳机放大器设计
electron bombarded semiconductor amplifier
电子束半导体放大管
Branch of science that deals with the study and application of electron devices, e. g., electron tubes, transistors, magnetic amplifiers, etc.
关于电子器件(例如电子管、晶体管、磁放大器等)的研究与应用的一门科学分支。
electron micrograph
电子微写器;电子显微放大器;电子显微镜相片;电子显微镜照片
A tube or a transistor can amplify an incoming signal.
电子管和晶体管能放大输入的信号。
It is the equivalent circuit of a triode amplifier circuit.
它是三极管放大器的等效电路。
nondegenerate electron beam parametric amplifier
非简并电子束参量放大器
Introduction to the Power Amplifier Courseware Based on Electronic Technology CAI;
电子技术CAI——功率放大器课件的介绍
Blank detail specification for receiving tubes
GB/T15426-1994收讯放大电子管空白详细规范
non-reentrant beam crossed-field amplifier tube
非重入电子注正交场放大管
reentrant beam crossed-field amplifier tube
重入电子注正交场放大管
A vacuum electron device made by the discharging currnt, that is, ignitron, has the features of resistance to high pressure, high power and fast current rise.
利用这放电现象制成的一种真空电子器件即引燃管,具有耐压高、率大、流上升速度快等特点。
The Methods of Judging the Kinds of Negative Feedback Amplifying Circuits
电子电路中反馈放大器类型的快速判断方法
amplifier-type voltage regulator
放大器式电压调节器
condenser-transmitter amplifier
电容式微音器的放大器