4 ms·

My bad. Here's the actual source, would you mind updating? https://worldradiohistory.com/Archive-Electrical-Experimenter/SI-1926-04.pdf#page=17 https://worldra

• dang 4y ago
  It's ok! these things aren't always obvious. That's a great link but the blog post adds quite a bit of context so I'll pin it to the top but not change the URL. I hope that works!