Joined: Aug Tue 30, 2011 11:25 pm Posts: 930 Location: Charlevoix, Michigan, USA
I don't own any pre-war FM radios, though I have a friend who does. I ran across this article, though, and it looked interesting so I am posting the link in case anybody else wants it:
Joined: Nov Sat 26, 2011 4:09 am Posts: 937 Location: Texas. USA
There are some other converters here http://www.somerset.net/arm/fm_only_converters.html including a 'no tube' crystal version like the one in your link, except they explain how and why it works, at least for strong locals.