IT-5230 crt tester wiring needed

[Rod]

Hi All
I have a Model IT-5230 with no other info. Does
anyone have a wiring diagram for the 9 pin female plug
that goes to the tube under test? Which wires are
red cathode,blue cathode,heaters, etc.
Of course a schematic of the unit would be great as well.
Thanks for any help.
Rod
Kelowna B.C.

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