|
Bob,
I am very fortunate that my 26R12 was not hacked up like yours. Actually, when I bought it working from a guy about 20 miles from here, he told me it worked. He had quite an assortment of what I would call "Desirable" sets. Anyway, it did work so it was just a matter of replace caps, test, replace caps, test etc. I was lucky that all coils and transformers were good.
Just FYI, it worked fine for about 2 hours and then I heard a "POP" and the vertical collapsed to about half. I was not able to make it bigger with the height control (clue #1) but the vertical linearity did work. Voltages did not change whilst rotating the height control (more confirming clue #2). I tried lots of stuff and was unsuccessful so I put it down.
One of the guys, I think Dennis, at ARF suggested "tin whiskers" on the height control. Removing, cleaning the outside and the problem was gone. Lesson learned by me, remove controls, clean the outside a well as the carbon track and reinstall.
I have an NOS RCA 16TP4 in mine. Not aluminized so it isn't super bright. And I think I found out why it was NOS in the box for so many years. There are about three spots on the face where the phosphorus is missing. Factory defect. But you really have to look for them so, "No Worries Mate!".
Sorry if I hijacked your thread. It is nice to follow this thread...
|