Picture tubes--rate them...

[David Roper]

Sylvania did NOT make or market ANY color sets with RECTangular color tubes in the 1950s. The contours of THE mask merely make it appear to be a rectangular tube...kind OF.



I agree with Nick that to concentrate on the tubes' durability and largely ignore/dismiss the very factors that most affect image quality (increased brightness of later rare-earth tubes sacrificed some hue range) misses the POINT.

[rca2000]

SOMEONE made an "attempt' at a 22" color tube, in 1957. A couple of members have sets with them. I THINK they have a "big neck" like a roundie. It was either sylvania or westinghouse, I think.

[dieseljeep]

Originally Posted by rca2000

SOMEONE made an "attempt' at a 22" color tube, in 1957. A couple of members have sets with them. I THINK they have a "big neck" like a roundie. It was either sylvania or westinghouse, I think.

I understood, that it was CBS-Hytron that built that CRT. They also built the 19" tubes for CBS Columbia, Motorola and Raytheon.
They were one of the patent holders for the tri-color phosphor dot design.

[DavGoodlin]

Originally Posted by dieseljeep

I understood, that it was CBS-Hytron that built that CRT. They also built the 19" tubes for CBS Columbia, Motorola and Raytheon.
They were one of the patent holders for the tri-color phosphor dot design.

Was it a 19VP22 that Motorola used in its 1957 color set? That was also a troublemaker. I think there was a kit to convert the set to a 21AXP22.

[miniman82]

Originally Posted by David Roper

Sylvania did NOT make or market ANY color sets with RECTangular color tubes in the 1950s. The contours of THE mask merely make it appear to be a rectangular tube...kind OF.

He said Sylvania or Westinghouse, which means he was probably thinking of this set not the Saratoga:

http://earlytelevision.org/westinghouse_h22t155.html




Sylvania did however make 21AXP22's, my Saratoga has the original Sylvania branded CRT in it with great emissions.

[marty59]

No mention or love for the 21CYP22?

[rca2000]

Originally Posted by miniman82

He said Sylvania or Westinghouse, which means he was probably thinking of this set not the Saratoga:

http://earlytelevision.org/westinghouse_h22t155.html




Sylvania did however make 21AXP22's, my Saratoga has the original Sylvania branded CRT in it with great emissions.

The top set Is the one I was referring to--with the 22" tube---that did NOT take off. NOT a well-made set--hot chassis and such and VERY few are around evidently.