I have a 208 cw filter. I do not have an Argonaut any more, so I have no use for the 208. It should have gone with the Argonaut. Jim W7ANF Quoting Ronnie Davis <ke4vpn@yahoo.com>: > Hello > Im looking for a 208A cw filter with notch for the > Argonaut 515. If you have one for sale please email > direct. > Thanks > Ronnie