Hmmm.... Looks like it might be close, but there are some pretty big differences- almost certain my set does not have FM, nor does it have as many tubes.
I'll get some shots of the chassis underside tomorrow when I've finished cleaning it up.
Edit: If that is indeed the case, I'll have to see what I can get for AM here... If there's nothing good, looks like I'll be building one of these:
http://sci-toys.com/scitoys/scitoys/...ansmitter.html