https://worldradiohistory.com/BOOKSHELF-ARH/Handbooks/Radio-Handbook-4-1936.pdf
Frank Jones’s 1936 Radio Handbook
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SolderSmoke Daily News — Ham Radio Blog
Serving the worldwide community of radio-electronic homebrewers. Providing blog support to the SolderSmoke podcast: http://soldersmoke.com
What a great resource. THis has a big table on transmitter tube characteristics that I haven’t seen anywhere. Data on tubes that I didn’t know existed. A great how-to book on building real breadboards.