The Soldersmoke blog pointed out an interesting post that was a focal point of a larger book review for "Agent Sonya: The Spy Next Door". The post's author was quite convinced that the key protagonist of the nonfiction tome could not and did not construct her own QRP communication rig in the 1930s as stated by the book's author. I beleive Agent Sonya could have constructed the rig More about the book on the publisher's site The Soldersmoke post The focal review post The 1936 Radio Handbook So, as I was saying: I, for one, believe. I'll admit up front, I didn't have time to read the entire linked post. The following assumes that the issue was Sonya being able to build a transmitter in 1939 for use from Switzerland to Moscow. The short version? It should have been the picture of simplicity. As an aside and a bit of a bona fides, we routinely QSO from San Francisco to Texas and beyond. That's the same distance as Switzerland to Moscow. I grew up in a ...