Headline -
DARPA's Bringing Back the Vacuum Tube (h/t
Glenn Reynolds) [bold added]:
the tech has unique benefits. Because they have millimeter wavelength precision and higher amplitude, the signals from the vacuum tube powered devices are harder to jam. Beyond military uses, civilian communications devices can be improved, as well as electronics used by physicists and other scientific researchers. It allows devices to operate above the 75 GhZ radio line, utilized by radio astronomers, radar installations, and satellites.
Vacuum tubes are less vulnerable to
electromagnetic pulses and could be part of a defense against EMP attacks. Just as it's a good idea to keep a pre-2000 running automobile that can't be disabled by EMP or tracked (by GPS) or hacked (by WiFi), the virtues of old technology are being appreciated more and more.
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