Aug., i958.] CURRENT TOPICS 1,5I material could effect a saving in the cost of treatment of some waters, since there is some evidence that similar amounts of water treatment chemicals would be required. Basic cost of the radioactive "waste products" would be in the handling of them between the sourc
Using low noise amplifiers
β Scribed by F.G. Smith
- Publisher
- Elsevier Science
- Year
- 1962
- Tongue
- English
- Weight
- 529 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0038-1101
No coin nor oath required. For personal study only.
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The FET analogue devices AD524AD and AD624AD, precision instrumentation amplifiers, have been successfully used at 77 K. The devices ceased to function when immersed in liquid helium but recovered, without damage, after warming. The gain, set by internal resistors on the chips, was almost independne
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