Has anyone had the opportunity to see an analogue realisation ( using lumped RLC ) of a comb filter?
Yes. It was working at UHF though which makes things a bit easier in some respects.
#1 Hardware Problem? https://www.avrfreaks.net/forum/...
#2 Hardware Problem? Read AVR042.
#3 All grounds are not created equal
#4 Have you proved your chip is running at xxMHz?
#5 "If you think you need floating point to solve the problem then you don't understand the problem. If you really do need floating point then you have a problem you do not understand."
This filter needs to operate at mains frequency ( 50Hz ) so transmission delay lines are out of the picture.
Found the answer.
A combination of twin T and a transformer.
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