Titlebook: Mastering Electronics; John Watson Textbook 1986Latest edition Macmillan Publishers Limited 1986 electrical engineering.electronics.engine

工作

Deduct

樹木心

Tools, Test Equipment and Safetyhe application. For electronics work a mixture of 60 per cent tin and 40 per cent lead is usual. If solder is heated to its melting point, and applied to a variety of different metals, it will amalgamate with the metal surface to provide a joint with high electrical conductivity and good mechanical

口訣法

Semiconductorsard, bullet-like electrons hurtling round the massive nucleus just like planets orbiting a sun in a tiny solar system. The work done by Werner Heisenberg in the late 1920s showed that this model is unfortunately further from reality than we might find comfortable and that the atom is actually a rath

characteristic

Field-Effect Transistorstion of a signal. Field-effect transistors (FETs) are ., and involve only one type of charge carrier (electrons or holes) in their operation. There are also two major types of FET, junction-gate field-effect transistors (JUGFETs) and insulated-gate field-effect transistors (IGFETs). There are, as we

使堅(jiān)硬

Amplifiers and Oscillatorsrent. The application to a machine like a record-player, for example, is an obvious one, for the small electric signal produced by the player’s pick-up cartridge must be amplified to a sufficiently large extent to drive a speaker. A system diagram of a record-player amplifier looks quite simple (see

Inferior

Fabrication Techniques and an Introduction to Microelectronicsctor manufacture, or ‘fabrication’ as it is more generally called in the industry, is a highly specialised and very difficult subject, but it is useful for the electronics engineer or technician to have some idea of the principles involved.

commute

揮舞

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