Quote:
Originally Posted by johndallman
More than experimental devices: ships routinely had radio transmitters and receivers before WWI. Military air-to-ground radio was reasonably routine in 1918 at mid TL6 and thoroughly standard by the mid 1930s.
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Yes and operating and repairing all these things is terribly, terribly arcane and the domain of people who answer to "Sparky" or "Sparks" when called.
Even though it's over the tL7 line at 1940 most WWII systems would still be TL6.
Perhaps repairing telegraphs requires only Electrician but that's well within the TL5 period.