11. A key concept of the systems was the use of a storage tube for the display. 12. Note the slight glow over the entire screen, typical of the storage tube display . ]] 13. The sperm may be retained in storage tubes attached to the oviduct until the following spring. 14. Storage tubes were based on CRTs, sometimes unmodified.15. He conceived and developed the selectively addressable storage tube , the ill-fated Selectron tube, and the core memory. 16. According to the strongest rumor, the storage tubes might have been metal coffins to sum up the story. 17. Once unfolded from its storage tube and its electronics initialized, the SkySeer is then hand-launched by its operator. 18. Other storage tubes were able to store greyscale / halftoned images; the tradeoff was usually a much-reduced storage time. 19. In 1973, the site included and Cassegrain telescopes equipped with storage tubes , remote readouts and image orthicon electronic imaging tubes. 20. Other "'storage tube "'displays such as the popular Tektronix 4010 use a special phosphor that continues glowing for many minutes.