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You can download the service manual
here. https://www.nodevice.com/service-man...pye/fv1/440613
The label on your CRT states 6.3v 200mA
which is strange as the original would have
been 300mA to match the series string current
unless I'm misreading the label.
I think the sticker says EM=200. EM is for emissions?