Many thanks to SWLing Post contributor, Don (W7SSB), who writes:
I thought these links might be of interest to your readers:
https://www.qsl.net/va3iul/Files/Old_Radio_Frequency_Books.htm
Brilliant! Thanks for the tip, Don!
Of course, another deep treasure trove is the World Radio History website.
Here are two more books to enjoy:
Radio Receiver Chance or Choice – Rainer Lichte
https://bit.ly/390B2v1
More Radio Receiver Chance or Choice – Rainer Lichte
https://bit.ly/390B3iz
Nice collection but this link is no more
https://archive.org/download/RadioReceivers/BarkanZhdanov-RadioReceivers_text.pdf
Maybe links croller is needed.
A simple search for BarkanZhdanov
yields a copy on ScribD (see Wikipedia) easily downloaded (the English version 507 pages PDF )
https://www.scribd.com/document/409891616/BarkanZhdanov-RadioReceivers-pdf
The Mir books link with a table of contents of the English translation (link to the Internet Archive cited above)
https://mirtitles.org/2013/09/11/radio-receivers-barkan-zhdanov/
And several online book dealers selling
Barkan, V. F., Zhdanov V. K. Radio Receivers, A Textbook For Colleges.\Barkan V. F., Jdanov V. K. Radiopriemnie Ustroiystva Uhebnik Dlia Tehnikumov.,