File:2N140 PNP Germanium Alloy Junction Transistor closeup.jpg
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[edit]Description2N140 PNP Germanium Alloy Junction Transistor closeup.jpg |
English: Closeup of the junction in a 2N140 germanium alloy junction transistor. This transistor was introduced by RCA in 1953 (in a TO140 package), and was their first high frequency transistor suitable for usage in the IF stage of an AM radio. The crystal is reflecting a blue light; it would naturally be silver colored. This picture is focus-stacked from 312 pictures, using a 10x microscope objective |
Date | |
Source | Own work |
Author | John Maushammer |
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[edit]I, the copyright holder of this work, hereby publish it under the following license:
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This image was uploaded as part of Wiki Science Competition 2017. |
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current | 20:14, 24 November 2017 | 3,680 × 2,456 (2.15 MB) | Morcheeba (talk | contribs) | User created page with UploadWizard |
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