Westinghouse K840CK15 Restoration

[etype2]

Originally Posted by trinescope

Not sure who made these tubes besides RCA. Mine is also 4 13 date code.

Here is the best I could do with a phone camera to get a picture of the phosphor dots; the holes I mentioned show up mostly on the blue and red here.

I see the same thing on mine, but only when the dots are dimly lit.

[old_tv_nut]

Originally Posted by etype2

I see the same thing on mine, but only when the dots are dimly lit.

Really curious phenomenon there!