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by OptCohTomo 2076 days ago
Where is Edwin Armstrong?
1 comments
segfaultbuserr 2076 days ago
Section 14, "Expanded Audion and Vacuum-tube Development (1917-1930)" [0], including Armstrong's original paper [1].

[0] https://earlyradiohistory.us/sec014.htm

[1] https://earlyradiohistory.us/1921sup.htm

link