Titlebook: Rectifier Circuits; William F. Waller Textbook 1972Latest edition Macmillan Publishers Limited 1972 circuit.circuits and systems.electrica

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Heatsinks,To electronic engineers a heat sink is a piece of metal constructed in a particular manner to which a semiconductor device is usually attached and which acts mainly as a heat drain. Thus the term sink is something of a misnomer — heat dissipator or heat radiator might more accurately describe its function.

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MIME

Suppository

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博愛家

Macmillan Publishers Limited 1972

BRAVE

Selenium Rectifiers, a variety of applications. Since their original practical realisation the basic structure has remained unchanged, improvements being generally in methods of manufacture and processing which have resulted in improvements in yield, voltage rating, current rating, operating temperature, reliability and ageing effects.

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Semiconductor Control Devices,gative resistance makes possible the design of unique switching circuits comprising fewer components than comparable transistor circuits. The input impedance of the UJT in the off state is high— in the order of 5 megohms — making the UJT suitable for high input impedance voltage sensing circuits.

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Auxiliary Circuit Elements,silicon content and electrical properties and the grades are known by various trade names Table 1 gives a cross-reference guide to typical properties and trade names. Some of these names are now obsolete but are included for reference.

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