脾气暴躁的人
发表于 2025-3-26 21:55:00
Connor Struggles to Stay in School there can be replaced by gas-filled diodes. Such diodes have a robust electrode structure and are filled with an inert gas such as argon, helium or xenon; alternatively, the tube may have mercury added, and thus becomes filled with mercury vapour when the cathode has reached the correct operating t
摆动
发表于 2025-3-27 04:48:25
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微不足道
发表于 2025-3-27 06:20:48
Amber M. VanDerwarker,Tanya M. Peresessive intervals of time. In many cases the waveform of the output voltage is sinusoidal and the oscillator is then called a sinewave generator or harmonic oscillator. Those instruments that produce repetitive waveforms that are square, triangular or sawtooth in shape are called relaxation oscillato
晚间
发表于 2025-3-27 12:33:39
https://doi.org/10.1007/978-3-031-21347-2atility that workers in every branch of scientific activity now find the instrument to be almost indispensable. If limited to the purchase of a single item of electronic measuring equipment, the majority of experienced workers would select an oscilloscope.
LIMN
发表于 2025-3-27 16:33:02
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使残废
发表于 2025-3-27 21:13:18
Charlotte Marie Bisgaard Klemmensensuring instruments employed in scientific investigations is very large, and it is not possible to discuss here every instrument that could be used. A selection has therefore been made of those instruments that are most likely to be used, and whose operation depends upon the electronic principles des
nepotism
发表于 2025-3-27 22:58:29
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容易生皱纹
发表于 2025-3-28 03:33:17
Introduction,who are keen to delve immediately into the subject matter. It is in the hope of arresting the attention of such readers that this short introductory chapter has been written. In it an attempt has been made to ensure that all readers know what the aims of the book are and what they can expect from a study of the text.
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发表于 2025-3-28 09:05:36
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轻浮女
发表于 2025-3-28 11:42:38
,Active Devices 1 — Thermionic Valves,common of all electronic operations, cannot be performed by using networks of resistors, capacitors and inductors. It is necessary to energize such networks by using some active device. The two major groups of active devices are (a) thermionic valves and (b) semiconductor devices. This chapter deals with thermionic valves.