Hi fellow BITX-ers,
About one or two months ago I promised to report of my ladder filter
experiment on 9MHz. I just dropped the files with shape-pictures in the
Files box. See the folder "Ladder Crystal Filter Design".
There is also an Excel file that can be used for your own experiments.
To give you a short summary: it can be done but without measuring the
shape it is a bit of lotery, like Max said in earlier messages.
73
Ruud
PE2BS
