Socket adapters for B&K CRT Tester ?

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I don't have a manual for mine , thanks for the link .
After running for a while it has stayed at 400 ua .
The heater voltage on my B&K is about 5.8 V
I connected a 6.3V supply to it anf that raised it into 500 ua range .
at 7.5V it was 600 ua
The life test shows that its tired out .
However this is much better than the 0 emission reading I started out with .
My G2 problem was actually a bad neon bulb in the B&K , so G2 is OK .
Cutoff appears to be within limits .