Restoring a RCA 21CT55

[benman94]

Originally Posted by etype2

Just read a 1954 paper by RCA last night. This particular tubes shadow mask, 21AXP22 blocks 85% of the electrons. This same figure was presented to the IEEE....

And this is exactly what I referred to in my last post. This is yet another reason why you run the jug at 25 kV...

As far as the screenshots go, I can tell, especially in comparison to the CTC-7, that the image is on the dim side. Otherwise they look alright.