[drh4683]

Finished tuning it all up this evening. Went through a cleaning process. Had to take it all apart, down to the CRT. Had to pull the CRT so I could clean the "smokers dust" off the bell of the tube. It was pretty bad as you can see in the "before" photos earlier. It did clean up really well though with the paint brush and my 1963 electrolux model G vacuum cleaner. Tubes were actually good. That brightner never belonged on this CRT. the Video output tube was weak! The tekie put that in no knowing where the real trouble was. It is a low hour set, lots of original tube still good and going strong. Even the 6Z10 was good! After the repairs, it got a "cook out", and sure enough the 6Z10 shorted out on me. So it got replaced anyway. Go figure. Typical zenith tube set though, focus is somewhat soft due to the leaky focus rectifier. Put in a new NTE118 and it sharpened up and brought the pot mid way like it should. It converged really well, even with a good selenium convergence diode. Lots of zeniths with high hours will have a burn up convergence pot for the left side blue horizontal line control. Another tip this set didn't see much use as that pot was still good and not "crumbling" when I turned it. I really like these tube chassis/solid state IF models. They were always good working reliable sets. The 16Z8C50 is a chassis I don't run across too often on the zeniths. 9 times out of 10 I find '68 model zeniths with a 20Y1C48 chassis. That must have been a big year for color TV sales. I can't tell you how many '68 models I have and how many I have run across over the years.

Got some large pics here, so enjoy. Looking at the chassis is what its all about on zeniths.