18-08-2012, 10:43 PM
Hi Joe: welcome the world of invisible components at R.F.! 
Yes, I think you are correct: your initial lash-up had various bits of stray L and C that are no longer there in your tidied-up version: a very common occurrence at R.F. Having said that, I see that your R.F. choke arrangement is different to what the original design was: that could also account for what you have found. I have made a post here in response to a Thread started by David (Yorkie) that discusses such a situation as regards R.F. chokes. At least you took the wise precaution of arranging your two chokes to avoid mutual inductance coupling: not everyone would have thought of that.
Al.
Yes, I think you are correct: your initial lash-up had various bits of stray L and C that are no longer there in your tidied-up version: a very common occurrence at R.F. Having said that, I see that your R.F. choke arrangement is different to what the original design was: that could also account for what you have found. I have made a post here in response to a Thread started by David (Yorkie) that discusses such a situation as regards R.F. chokes. At least you took the wise precaution of arranging your two chokes to avoid mutual inductance coupling: not everyone would have thought of that.
Al.
