Quote:
Originally Posted by Gianni
Yes.
in some European sets from 70s there is a similar device, a "plastic glass", almost black (!)
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The dark glass or plastic of some 60s and 70s European sets was meant to avoid daylight reflections on the crt's face and improve the contrast, not for implosion safety purposes...
The dark glass was also very hard on the CRT as it had to be run at much higher brightness levels.
Actually, most european sets (both B/W and color) made after 1964 had rimband type integrally protected CRTs, the only exception is the Italian Philco factory, which continued to make sets with unprotected CRTs and separate safety glasses into the early 70s