Here is one blackplate that tests okay with no gas, no shorts, lots of getter-flashing and excellent life-test. This tube has three support posts and three 'D' shaped getters, i.e., one top getter, and two stacked side getters. This tube tests half way between NEW and JAN MIN, and is in beautiful condition. 322HN3 Gm = 5250 / where 6500 = AVERAGE NEW MEASUREMENT / and 4095 = JAN MIN
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