Phil Nelson posted on his great vintage TV site this CT-100 ad from RCA. Read the text for the amounts and brief history of RCA's prototype and CT-100 tubes made available to other manufacturers in the early '50's.This was not totally altruistic on RCA's or Sarnoff's part. They wanted color TV in the public's hands and if it took other manufacturers to get the ball rolling, so be it.
RCACT-10015GP22KinescopeAd.jpg
http://antiqueradio.org/art/RCACT-10...inescopeAd.jpg
-Steve D.