gb wrote:

Unless you specifically want a Kenwood part for restoration originality,
etc.
There is always International Radio (INRAD)
http://www.qth.com/inrad/

International Radio is a supplier of custom designed, high performance
quartz crystal filters for communications receivers and transceivers.
Filters are available for communications receivers and transceivers. This
includes ICOM, Yaesu, Kenwood, Drake, Heath, as well as special designs for
experimental work.

These guys do nice work. I will suggest getting an 8 KC filter instead of
the 6 KC one, though. Noisier, but better-sounding.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."