1954 RCA Prototype 19" round color CRT

[stromberg6]

I believe the RMA designation for that tube was 19TP22. It was based on 15GP22 design. If you search through SAMS, you might find a set or two that were covered that used that tube. The CBS tube, 19V, was clearly superior, so the 19T was abandoned before it was used in any number.
Kevin

[hposter]

Charles--thanks!

I've sold a couple of the early 15GP22 prototype CRTs over the years, the style with the bolts showing through the mask. And at least one of the 15" prototype TVs.


Kevin--thanks for the 19TP22 designation info.

This was the first time I ever heard of it, so like you, I suspect they never went into any kind of production, and if they made one or two prototypes, it was a lot!

Harry

PS--for what it's worth, I did find a little on Pete's page about this CRT...if you do a Find in Page: 19TP22, it'll make it easy to spot!
http://home.att.net/~pldexnis/potpourri2/lastpage6.html