[Collins] WTB: 75A-4 & 51J-4 mechanical filters

[daveaust at pol.net]

Looking for some filters:
I am getting ready to buy a Dave Curry 75A-4, 2.1 filter but first
thought I'd check the list and see if any members have an extra they are
not using and would like to sell.
Second, long shot, looking for any filters for my 51J-4 which right now
only has one homebrew L-C job that was in place when I bought the
receiver. It works but it isn't a mechanical filter so I would like to
find any of the real filters. thanks/73, dave N5WNM, daveaust at pol.net