Quote:
Originally Posted by Sandy G
I have one, too a 12" Admiral from 1950, I believe. Cyoot widdle bugger, has a good pic, & is a floor standing mini console configuration. Guess we could call 'em "Double Ds", but that really wouldn't fit my little guy, & I'm not really all that hepped over the Double D moniker...
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Yes, the Admiral has a different shape, a slightly stretched double D :
I don’t have a nickname for that shape, and usually just mention that various manufacturers used different mask shapes for round tubes, from completely round to a fairly strict 3 x 4 to best satisfy their customer base, as they perceived it.
Double D vs 3 x 4 mask on 10 inch round CRTs below:
In my tv room, I have samples of round and rectangular magnetic deflection crts as well as electrostatic and flat “watchman” crts to pass around and discuss, if desired.
jr