If you are getting arcing at the spark gaps with the tube socket pulled,
it may also be a short in the flyback causing the focus voltage to be
excessive, but not necessarily the HV.

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"Mike" writes:

I have this monitor, and when you power it on, it will degauss.

The HV will kick up, and a loud snap is heard and it is shut down. the HV
sounded kinda strong in the first place.

after close examination, it was arching in the tube socked. I pulled the
tube socket and tried it again. and i could see the internal spark between
where the 2 focus leads go into the socket. I pull one of them and tried
again, this time I seen an arc with the same magnitude somewhere else in the
tube socket.

Sounds as if the HV is going exessive and shutting down.

In other words, im guessing the safty hold-down capacitors.

Any ideas?