Australian Amateur Radio Station
OZ4MM's TVI FILTER build
Stig's excellent results are no doubt due to his excellent interstage shielding!
Stig writes: " Hi Charlie I am not sure if you can see the details in my handwritten diagram?. But coils
and variable caps is same as you suggest. Only in my version, I got better result then I first had a
Bandstop>bandpass>bandstop at both 144 and 432.
As you can see on the photo, I did several experiments, so the final circuit is VERY UGLY, but works
fb, thanks to you Charlie."