This was posted on the QRP newsgroup today. Wonderful idea.
http://www.retrothing.com/2010/03/vacuum-tube-radio-hat.html
14 Mar 2010
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Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.
VK3YE is well known in amateur radio circles. This is his video on very low powered experiments with WSPR.
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