Please check out my homebrew one tube SW regen radios. they work from 12
volts DC, no high voltage.
They really work great.
Also I have SW x-tal radios
http://cgi.ebay.com/ws/eBayISAPI.dll...e=STRK:MESE:IT
http://cgi.ebay.com/ws/eBayISAPI.dll...e=STRK:MESE:IT
http://cgi.ebay.com/ws/eBayISAPI.dll...e=STRK:MESE:IT
http://cgi.ebay.com/ws/eBayISAPI.dll...e=STRK:MESE:IT
Thanks
Larry Naumann N0SA