45.8 MB (2.3 MB compressed)
3374 x 4749 pixels
28.4 x 40.1 cm ⏐ 11.2 x 15.8 in (300dpi)
EDWARD KINSMAN / SCIENCE PHOTO LIBRARY EDWARD KINSMAN / SCIENCE PHOTO LIBRARY
X-ray of a vacuum tube, once commonly used in electronic devices to amplify signals.
Model release not required. Property release not required.