![Vacuum tubes we still (have to) use: The photomultiplier tube, Part 2 - Electrical Engineering News and Products Vacuum tubes we still (have to) use: The photomultiplier tube, Part 2 - Electrical Engineering News and Products](https://www.eeworldonline.com/wp-content/uploads/2019/11/featured-part-2-image-1.jpg)
Vacuum tubes we still (have to) use: The photomultiplier tube, Part 2 - Electrical Engineering News and Products
![A photomultiplier tube test stand and on-site measurements to characterise the performance of Photonis XP3062 photomultiplier tubes at increased background light conditions and lower gain - ScienceDirect A photomultiplier tube test stand and on-site measurements to characterise the performance of Photonis XP3062 photomultiplier tubes at increased background light conditions and lower gain - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0168900219307211-gr7.jpg)
A photomultiplier tube test stand and on-site measurements to characterise the performance of Photonis XP3062 photomultiplier tubes at increased background light conditions and lower gain - ScienceDirect
![Performance test and qualification of the photomultiplier tube for the whole production of LHAASO-ED - ScienceDirect Performance test and qualification of the photomultiplier tube for the whole production of LHAASO-ED - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0168900221010159-gr15.jpg)
Performance test and qualification of the photomultiplier tube for the whole production of LHAASO-ED - ScienceDirect
![Vacuum tubes we still (have to) use: The photomultiplier tube, Part 2 - Electrical Engineering News and Products Vacuum tubes we still (have to) use: The photomultiplier tube, Part 2 - Electrical Engineering News and Products](https://www.analogictips.com/wp-content/uploads/2019/11/WHTH_Special-Vacuum-Tubes_TWT_pt2_Fig1.png)
Vacuum tubes we still (have to) use: The photomultiplier tube, Part 2 - Electrical Engineering News and Products
![A photomultiplier tube test stand and on-site measurements to characterise the performance of Photonis XP3062 photomultiplier tubes at increased background light conditions and lower gain - ScienceDirect A photomultiplier tube test stand and on-site measurements to characterise the performance of Photonis XP3062 photomultiplier tubes at increased background light conditions and lower gain - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0168900219307211-gr9.jpg)