77 sylvania

[DaveWM]

I can't find the chassis number unless its the real long one E4000....

anyway assy in mexico,has the 3 main boards, does NOT use the loose coupled power tranny and big motor run cap, instead has a SS regulator (I presume, its next to the HOT).

Two issues

vert kind of unstable, will colapse for a fraction of a second at times (I dont leave it alone and will not use it until i resolve as I do not want to burn the 25vdmp22.

second, looks like a yellow stain on parts of the screen (pls no jokes), I assume its a purity issue as when I went to set it up I did not get perfect red. in the same area.

However I was at a loss on how to set it up for purity. It seems like the horz yoke is not designed to be moved fore and aft and has no provisions for tilting etc. to adj. the purity rings are hard to adj since they are right up against the convergence board. they are current both set at 12:00. I did try moving them but was not able to get it any better, but I was limited in what I could do since I was fighting the conv board placement.

this one is in a very simple cabinet, with twist on legs. Clean by 1970's standards, I am guessing a low end set (cabinet wise).