[Elecraft] ultimate rejection

[Stewart Baker]

> Next, I went to local hobby shop and bought some tin.  I made little  tin
> "houses" which I placed around the matching toroids, ground them  carefully.
> It
> worked too.  Next I added a little tin "fence" which  went on the bottom the
> board, shielding the input of the filter from the  output.  It worked.  Three
> times is a charm!
> My point:  it ain't rocket science, but the old ideas of keeping RF  away
> from places where it shouldn't be work just as well as they ever did.
> I don't have means of measuring this stuff accurately.  Let's just say  that
> when tuning across really loud forty meter broadcast stations the filter
> sounds A LOT tighter then it did.
> Has anybody else tried this stuff.  There must be hundreds of you old  guys
> who have messed with such things.
> So, until Elecraft finds a way to put a bulletproof 8 pole filter in its
> magnificent radio it's time to improvise a little.
> 73,
> Merlin W3ICT
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Hi Merlin,

I would like to try your approach, Any chance of a photograph, to show how you 
have positioned the shielding ?

73
Stewart G3RXQ