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Old 03-11-2015, 07:39 PM
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Tubejunke Tubejunke is offline
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Join Date: Apr 2003
Location: Martinsville, VA
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Update pics for 65 zenith

OK folks, as promised; here is where I stand. I didn't want to post pics until I had a decent color picture. I think I found and tested 10 6GH8 tubes before I found one even marginal one one of the two tests for that tube. The rest were LOW emissions. I have heard that the 6GH8s were lousy tubes and my B & K Dynajet 747B sure proves that. I notice that there are some common subs like 6U8 and 6EA8 that may work, but I had none on hand. Anyone every tried any other subs?

But as for the whole HV rectifier project; it looks like a wrap. Very stable and still using a slightly reduced line voltage I can maintain less than 200mA at the horizontal output's cathode. The fly seems to be running cooler than it was when I had the old socket and corona hiss. I absolutely love that silence and a cool fly.

I am really surprised at the generally good color picture with really no alignment. Not proper anyway. I did set the service switch and touch up the guns to get as good a white line as I could, but there really wasn't much to do there. Next comes the use of the same age RCA dot bar generator as up close there are obvious alignment issues. I think it will be stunning when I work those out.

Thanks again everyone for the help on this!

Tube
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Last edited by Tubejunke; 03-11-2015 at 07:52 PM.
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