File:OCP71, collector side.jpg
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Summary
[edit]DescriptionOCP71, collector side.jpg |
OCP71 germanium phototransistor in clear glass SO2 case. This is otherwise identical to the OC71 PNP transistor, except for the clear case. The large square is the base substrate of n-type germanium. The blob on top of this is the indium pellet, used to form a layer of p-type germanium and thus the collector. A similar, but smaller, blob on the other side forms the emitter.[1] Bought new, over the counter in a radio shop, in 2011! |
Date | |
Source | Own work |
Author | Andy Dingley |
Permission (Reusing this file) |
I, the copyright holder of this work, hereby publish it under the following license: ![]() ![]() ![]() This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:29, 20 September 2011 | ![]() | 1,073 × 1,934 (367 KB) | Andy Dingley (talk | contribs) | == Summary == {{Information |Description=OCP71 germanium phototransistor in clear glass SO2 case. This is otherwise identical to the OC71 PNP transistor, except for the clear case. The large square is the base substrate of n-type germanium. The blob on to |
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Camera manufacturer | Panasonic |
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Camera model | DMC-TZ10 |
Exposure time | 1/100 sec (0.01) |
F-number | f/3.5 |
ISO speed rating | 80 |
Date and time of data generation | 11:35, 18 September 2011 |
Lens focal length | 4.1 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Microsoft Windows Photo Viewer 6.1.7600.16385 |
File change date and time | 11:39, 20 September 2011 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 11:35, 18 September 2011 |
Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 3.44 APEX (f/3.29) |
Metering mode | Pattern |
Light source | Cloudy weather |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Focal length in 35 mm film | 25 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |