selenium rectifier sentence in Hindi
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- In 1933 selenium rectifiers were invented.
- Solid-state technology was in its infancy, represented by copper oxide and selenium rectifiers.
- Selenium rectifiers were generally more efficient than metal-oxide types, and could handle higher voltages.
- They were replaced in power supplies beginning in the 1940s by selenium rectifiers and then by semiconductor diodes by the 1960s.
- The development of selenium rectifiers began during the early 1930s, and these replaced copper oxide rectifiers because they were more efficient.
- Though once widely used, selenium rectifiers have mostly been replaced ( or are being replaced ) by silicon-based devices.
- Zenith used a selenium rectifier of later versions of the T / O, replacing rectifier tubes used on the earlier models.
- These selenium rectifiers were used ( and are still used ) to convert alternating current to direct current in electrical power applications.
- Selenium rectifiers were once widely used as high-tension rectifiers in transformerless radio and TV sets, before cheaper silicon diodes became available.
- The Harvard was a fixed bias amplifier, using a basic cathodyne phase inverter, but did include a selenium rectifier in the bias circuit.
- Another possibility is a selenium rectifier, which could have been used in the time before semiconductors . talk ) 21 : 43, 10 May 2014 ( UTC)
- It used a selenium rectifier, came mounted on a wheeled chassis to make it easier to move around a garage, and could charge a starter battery in about an hour.
- Anything else, like selenium rectifier, for instance, does not come in small signal packages . "'Sp in ni ng Spark "'12 : 57, 3 January 2010 ( UTC)
- There were even a few " AA4 " designs, usually midget sets, only usable in strong-signal metropolitan areas, because most had no IF amplifier ( although some replaced the rectifier tube with a selenium rectifier ).
- In some countries the term " metal rectifier " is applied to all such devices; in others the term " metal rectifier " normally refers to copper-oxide types, and " selenium rectifier " to selenium-iron types.
- In 1941 Lashkaryouv published his fundamental discovery, the presence of a semiconductor layer between the barrier layer and the adjacent electrode, and the opposite sign of charge carriers ( electrons and holes ) on both sides of a barrier layer in solar cells of Cu 2 O and silver sulphide photocells and selenium rectifiers.
- The "'Fleming valve "', also called the "'Fleming oscillation valve "', was a vacuum tube ( or " thermionic valve " ) invented in 1904 by John Ambrose Fleming as a power supplies of a wide range of electronic devices, until beginning to be replaced by the selenium rectifier in the early 1930s and almost completely replaced by the semiconductor diode in the 1960s.
- On-site manufacturing capability covered every part of the engineering spectrum other than electron beam welding . There were acres of machine shops containing almost every variety of machine tool, extensive press shops, iron and non-ferrous foundries together with pattern shop and core shop, extensive drop-stamp forge, die-casting shops and tool room, tin-smiths'shop, copper oxide and selenium rectifier shops, electro-plating shop.
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