[AMRadio] NC300 Oscillator Tracking Nightmare - Success!

[Mark Foltarz]

Well after two days of fiddling around I finally got
it.

 I went back over the IF alignment. Apparently I got
this right the first time around.

The one thing that was not mentioned in the manual (
at least the copy on the BAMA site) was that the coils
for 40 - 10 have TWO adjusting turns available for
setting the bottom end of the oscillator tracking.
Once I figured that out it all seemed to snap into
place. 10 meter through 40 meter bands came together
pretty quickly. 

Then while attempting to adjust the 160 & 80 meter
oscillator coils I discovered that the adjusting turns
were fatigued to the point where they were broken. It
was obvious that someone had really screwed around
with this radio.

After a bunch of chassis, potentiometer, and switch
cleaning, this hulk of a radio is coming to life.

Thanks Jim, Gary and Russ for the info.

73 DE KA4JVY
Mark

__________________________________________________
Do you Yahoo!?
Yahoo! Web Hosting - Let the expert host your site
http://webhosting.yahoo.com