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Old 01-25-2012, 01:28 PM
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See yourself on Color TV!
 
Join Date: Jul 2004
Location: Rancho Sahuarita
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Quote:
Originally Posted by David Roper View Post
The image size on a 21" round tube is probably close to that of a 24" rectangular (b&w) tube, the difference in measurement coming down to the presence or absence of the corners of the frame.
Yes, 24 inch. NTSC raster is 3V:4H:5 Diagonal. The "21 inch" round tube is actualy 19+" viewable, so 19 x 5 /4 = 23.75 viewable.
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