[Kenwood] Thoughts on TS-820S prognosis

[Dave Edwards]

Just wondering what others thoughts on my findings of a TS-820s with low 
drive.

After it sat on a shelf for too long, I plugged it in recently.
During tune up, I found very low drive on the ALC meter....with carrier 
control full cw.

Tried a new driver tube, no change.

Then, I noticed USB and LSB are fine...with plenty of drive.

I also noticed that in CW....(which defaults to using the CW filter) I 
noticed signals were about 3  'S' units low, and signals
on CW sound "pinched".

There is an internal jumper which enables the CW filter.  I set it to 
not use the filter. Now, everything works fine...plenty of drive, CW 
sounds great (but with the SSB bandpass).

So, I'm thinking the filter went bad....Isn't that the most likely culprit!!

....Dave