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Old 07-02-2011, 12:55 PM
DaveWM DaveWM is offline
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Join Date: Feb 2009
Location: Orlando FL
Posts: 5,607
update. I managed to find a fly in my stash that was close, so while waiting for the correct fly from another member I was able to get it up and running. the HV was a bit low, and width was low (cathode current was about 175ma, basicly I had NO head room for bright scenes). Everything was working as it should but for the lack of headroom (the shunt tube current would drop to 0 on max bright scenes, and the HV would sag to about 19kv.

I received another flyback (the correct one) from a VK member, and just finished installing all the parts to it, and reinstalling the assy. I left my test fly intact as I know it works "somewhat". The only think I did was to use a miller focus coil 6350 instead of the orig since the orig was on the subbed fly, and like I said I did not want to disturb that until I get a chance to at least try the correct fly.

the only other issues were a weak contrast cap, and the normal weak color amp grid caps (.01's the one on the middle of the board seems to always be weak.

the vert lin was a bit to close to the end of the range, the 2.2meg resistor had drifted up to over 2.4, not much but as long as I am in it I replace that.

the vert electro cap tested fine. the doublers test ok, but were a bit slow to fully open, for example a new cap of the same value would open in about 13 seconds, the old ones would take about 30. I have all the caps I need to completely rebuild all the cans and will prob do that later...

only thing left to do is replace the 2kv tube cap on the primary of the audio out, its one of those ceramic tube types.

once I do that I will do the whole HV setup again and hopefully will have the head room to keep the HV constant.
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