Category:OC71
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English: OC71, an early germanium PNP bipolar junction transistor. These were mounted in a black-painted glass case. In a clear case, they were used as the OCP71 phototransistor.
Media in category "OC71"
The following 2 files are in this category, out of 2 total.
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OC71 germanium transistor.jpg 1,129 × 1,745; 217 KB
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OC71A valvo germanium transistor.jpg 1,277 × 1,582; 158 KB
