The transistor – or 25 miles on a hunk of Germanium (1953)

Also, the Selenium Rectifier : <a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Selenium_rectifier" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Selenium_rectifier</a>

There is a lot in there, but the one piece of trivia is they use the term Megacycles instead of Megahertz...

I&#x27;m blown away at the fact(?) that they got that thing to oscillate at 146 MHz. Wasn&#x27;t aware that any transistors with an fT that high could be made in the early 1950s.