Category:DuMont vacuum tubes

Media in category "DuMont vacuum tubes"

The following 4 files are in this category, out of 4 total.

• 
  Photomultiplier 6363 01.jpg 4,292 × 2,451; 1.75 MB
  
• 
  Photomultiplier 6363 02.jpg 4,281 × 2,463; 1.65 MB
  
• 
  Photomultiplier 6363 03.jpg 4,297 × 2,491; 1.67 MB
  
• 
  Photomultiplier 6363 04.jpg 3,832 × 3,104; 1.29 MB