Here are some specs from the most recent batch of full up 20UM and 20UA filmless gated white tubes that arrived from L-3 this week.
"Res" SNR EBI PC GAIN BLEMS
"72" "33.4" "0.5" "2,420" "64,291" "NONE</=.003"""
"72" "34.3" "0.6" "2,456" "61,862" "NONE</=.003"""
"64" "32.9" "0.9" "2,642" "63,297" "NONE</=.003"""
"72" "34.5" "1.0" "2,789" "62,992" "NONE</=.003"""
"72" "33.6" "0.5" "2,416" "62,180" "NONE</=.003"""
"72" "33.5" "0.6" "2,580" "30,309" "NONE</=.003"""
"72" "33.2" "0.7" "2,494" "62,592" "NONE</=.003"""
"64" "33.5" "0.6" "2,521" "62,737" "NONE</=.003"""
"72" "36.3" "1.1" "2,677" "62,322" "NONE</=.003"""
"64" "33.7" "0.9" "2,609" "63,654" "NONE</=.003"""