|
Hi to all,
I am very skeptic about an RCA working color CRT in 1951.
For the following reasons :
- Making the 12" 15GP22 was absolute hell : a suspended flat color phosphor plate which frequently cracked during high-temp processing.
- The phosphor plate was produced by silkscreen printing : poor precision and lots of rejects. Much more difficult with 21" than 12".
- The CBS rear-of-screen phosphor deposition process via a lighthouse hadn't been invented yet.
Maybe they made ONE that worked just for the IRE photo...
Best Regards
jhalphen
Paris/France
|