[Elecraft] Filter TOO wide on my KX1

[Kenneth Talbott]

Even in the extreme counterclockwise position of the Filter pot, the width
is TOO wide.  A full quieting CW signal (not really strong, simply above the
noise) can be heard at diminishing volume 800 Hz above and below the center
frequency (1.6 kHz wide!).  This is an older KX1 which I purchased built.
Any suggestions as to where I should start troubleshooting?  I have reviewed
the assembly documentation and schematic.  At the top end of resistors at
pins 2 and 3 of RP5 what voltage should I expect at the extreme ends of R2?
Can this be measured with DMM or would I need an RF voltmeter? Thanks for
any suggestions.

73 de ken ke4rg