| electron Tube Data sheets | 
       
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     | EMR documents | 
| (up)date | item | size | 
| 2023-03-10 | Photo-Electro-Optical Products (1st). | 4,515,319 bytes | 
| 2023-03-10 | Photo-Electro-Optical Products (2nd). | 4,878,983 bytes | 
| 2023-03-10 | Some datasheets, 44 pages, image dissectors, image intensifiers, UV image converter. | 17,274,923 bytes |