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The last round sets I have seen were built in 1970 or so, before the "viewable" image size rule came around so I think they were always advertised as 21" sets originally. The 19V type tubes would all be replacements.
It also seemed like advertising by square inches was more common in the 50's and 60's. A 23V" set would be advertised as a 295 sq. in . picture. Am not sure if this was viewable or total tube glass.
Yes, the "V" is viewable thus, 25XP22 is the same size as 23VALP22,
The sets we would call a 25" today were initially introduced with a 26...P22 designation.
Someone recently gave me a JVC set which states on the back : "27" color TV in America; 29" in Canada and South America" or something like that.
Last edited by Chad Hauris; 07-29-2006 at 10:46 PM.
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