[R-390] WTB: 8KC mechanical filter

[Craig C. Heaton]

To All:

It appears that my R-390A has a 8KC mechanical filter heading south; and not
for just the winter. When I reposition the receiver, such as stand it
upright to check tubes, that are underneath; I loose sensitivity on the 8KC
filter for a while. So far after a few days, it has come back and it is
close to the other three filters using the carrier level meter as a
standard.

So, does anyone on the list have a good and or NOS 8KC filter they wish to
sell or part with???Please contact me off list.

Item two; in the event 8KC filters are scarce as hen's teeth, does anyone
have pictures, jpegs, drawings of the inside in the event I decide to
operate on the little devil. I'd like to have an idea what's in there. I
have been through the achieves and have noted others have been down this
path. If it does fail, nothing to loose by going inside. Might be able to
clean out the old gooey foam.

Thanks,
wd8kdg
Craig