08-25-2012, 05:25 PM
After going through this set many times over, I have concluded that the interstage/output transformer is bad - the reason I have no tweeter signal.
I waited until I finished fixing the bad tweeter in the set, a burned up field coil, and was able to connect both speakers to come to that conclusion.
As an experiment I connected a generic output transformer across the primary of the interstage and connected the secondary to the tweeters, and guess what? I have sound coming from them.
So my options are to find another interstage from a donor chassis or add the output transformer under the chassis.
Does anyone have a parts donor?
The rest of the set has come together quite nicely, here is the IF response at minimum bandwidth and maximum:
[Image: http://www.myvintagetv.com/posts/38-690_IF2.jpg]
Chuck
I waited until I finished fixing the bad tweeter in the set, a burned up field coil, and was able to connect both speakers to come to that conclusion.
As an experiment I connected a generic output transformer across the primary of the interstage and connected the secondary to the tweeters, and guess what? I have sound coming from them.
So my options are to find another interstage from a donor chassis or add the output transformer under the chassis.
Does anyone have a parts donor?
The rest of the set has come together quite nicely, here is the IF response at minimum bandwidth and maximum:
[Image: http://www.myvintagetv.com/posts/38-690_IF2.jpg]
Chuck
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