Quote:
Originally Posted by Notimetolooz
The glass is tinted to make the blacks blacker and improve the contrast.
The unlit phosphor is not very dark, so room light makes it show brighter than ideal.
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When we were kids, we used to watch TV in the dark because the picture was so improved for that very reason. Of course, mom used to yell at us because "it will hurt your eyes!"..
Sylvania, somewhere about 1980 or so, came out with the Superset. These TVs had a very dark tinted faceplate and had a spectacular picture. These TVs had a beautiful black level. Unfortunately, in order to correct for low brightness, these tubes were driven hard and died early.
Side story: back in the early 70s, my dad used to buy RCA all-new Hi-Lite 23" and 25" tubes for CRT replacements, but also stocked a low end rebuilt tube named "Maverick".
The Mavericks were the economy line and dad used to give customers the option of price. The Maverick's were bright, sharp, and reliable and had excellent purity, but they had the oddest light colored phosphor - sort of a greenish white. I mean, when the TV was off it looked weird. Back then, I couldn't understand why they picture was odd. No matter what I did with the contrast or brightness, I couldn't get a normal picture. Of course, it was the light colored phosphor. It didn't occur to me at that time that the darkest image on the screen couldn't get darker than the unlit light color phosphor.
John