Hi Stefan, Pete and Johan, Some lovely coil forms! All that is needed is the wire. 0.4mm is available here in 30m or 75 kg spools. Thanks for the encouragement. I'll keep plugging away in the shack J
Hi Joe, I have almost forgotten that old LF converter. I just rediscovered the web page in an Internet museum! :-) http://home4.swipnet.se/~w-41522/lfconv/lfconv.html Regarding T1, inductance depends