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Old 08-03-2011, 09:41 AM
old_coot88 old_coot88 is offline
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Join Date: Sep 2009
Posts: 2,647
Quote:
Originally Posted by DaveWM View Post
I tried a new 3rd IF no change. it does not have a shield over the 3 IF, and the tube socket did not seem to have a ground contract, so I assume that is correct. Put one on it anyway, no change. I did not try 1st or 2nd IF tubes yet. Will give that a try, if that does not do it I will just call it ok for now. Oh also tried the video amp (6GH8) with a couple others inclding a 6EA8, it has a shield which was in place, again no change.
Have you tried tweaking the mixer plate coil in the tuner? Sometimes an eighth of a turn either way will make a major improvement in the IF response curve (operative word is 'sometimes').
oc
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