My recently purchased KWM-2 has a PTO instability issue which I'm sure is due to one capacitor. After dissecting and replacing one suspect cap in it I have changed the acronym from PTO to PITA !
It still has an issue wherein about once every 10 operating sessions it will a) suddenly jump freq about 22 kHz and b) the tracking inaccuracy degrades to about 6 kHz over 200 kHz from the usual less than 1 kHz over 200 kHz. I was pretty certain it was the 1000 pF cap C302 but nope, changing that didn't clear it.
So after my 'fun' experience of working on the PITA once already, can anyone recommend a PTO re-builder? Yes, the laziness factor is kicking in on this one.
Thanks 73 N6AF Chuck