{Collins} Collins Mechanical Filters for sale (modification)

I have two Collins mechanical filters for sale:

F 500 B 31

F-500 F 14

These are 3.1khz and 1.4khz filters of the "loaf of bread" shape. The 1.4
has threaded posts and the 3.1 has smooth posts. I have never used them and
don't have an application for them. How about $100 for the pair shipped to
lower 48 for starters.


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