Gallium phosphide crystal lamps (H4)
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LicenseGallium phosphide crystal lamps (H4), as illustrated in Doc
Science Museum Group
The Board of Trustees of the Science Museum
Gallium phosphide crystal lamps (H4), as illustrated in Doc. A3, designed for a film-marker application, part of early light emitting diodes, manufactured at Services Electronics Research Laboratory, England, 1960-1969. Many of the devices here are from a batch from 1962 rejected because of an error in the epoxy mixing, resulting in the encapsulation remaining sticky.
Details
- Category:
- Electronic Components
- Object Number:
- 2012-137
- type:
- lamp
- credit:
- Gift of Prof. J. W. Allen
