File:OC71 germanium transistor.jpg

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Germanium based bipolar transistors was made after 1954. Mullard-Philips tube designation OCxx. "O" signals a cold cathode tue. "C" signals a triode tube. But the component is a transistor. "xx" is a number.

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English: Germanium based bipolar transistors was made after 1954. Mullard-Philips tube designation OCxx. "O" signals a cold cathode tue. "C" signals a triode tube. But the component is a transistor. "xx" is a number.
Date
Source Own work
Author Glenn
Camera location55° 39′ 27.55″ N, 12° 29′ 17.91″ E  Heading=89.118232731798° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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current18:24, 14 September 2020Thumbnail for version as of 18:24, 14 September 20201,129 × 1,745 (217 KB)Glenn (talk | contribs)Uploaded own work with UploadWizard

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