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Royalty Free Image
673172944
- Id: 673172944
- Media type: Photography
- Author: anmbph
- Keywords:
white background technology old retro vintage industry device electronics development tube powerful old fashioned valve evolution progress vacuum terminal electrode anode triode switching cathode pentode getter electron tube electric current vacuum tube electronic device electric field glass envelope old things potential difference signal amplification connecting pin power amplification thermionic emission control grid electronic function amplifying vacuum tube
Categories
| Size | Width | Height | Mp |
|---|---|---|---|
| s | 500 px | 333 px | 0.5 |
| m | 1000 px | 667 px | 2 |
| l | 2000 px | 1333 px | 8 |
| xl | 5472 px | 3648 px | 15 |
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