In the meantime I am also looking to build an RX, TX or TRX for other ham band certainly 80m based on the 1b24b or 1sh24b tubes (aka Sputnik) and I am reviewing a few options. There are some great designs out there already but I'd advise you start maybe here http://www.techtir.ie/blogs/watty/miniature_valves_2 and http://www.oldradioclub.ru/radio_book/book/berg/berg.html for technical details of the valves. I especially like these.
http://www.techtir.ie/sites/default/files/u1000004/sweetheart/tatiana-sch-1.png
http://www.hi-ho.ne.jp/ux-45/russian.html If you use Google chrome is can do a Japanese to English translation... bit off but readable.
http://aa1tj.blogspot.com/2010/12/solidarity.html
http://dl3jin.de/tx_1x_1p24b.htm
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