![](https://coimages.sciencemuseumgroup.org.uk/58/890/large_thumbnail_1991_0166.jpg)
Experimental crystal lamps (H8) as H7
![Experimental crystal lamps (H8) as H7, made on 19/10/62](https://coimages.sciencemuseumgroup.org.uk/492/252/medium_smg00314952.jpg)
Experimental crystal lamps (H8) as H7, made on 19/10/62, part of early light emitting diodes, manufactured at Services Electronics Research Laboratory, England, 1960-1969.
Details
- Category:
- Electronic Components
- Object Number:
- 2012-141
- type:
- lamp
- credit:
- Gift of Prof. J. W. Allen