You need horz osc, horz out, damper, HV rect & focus rect.
Blowing fuse probably from too much cathode current on the
hoz out. That will be either bad drive or a bad load. Start
at the hoz out G-1 to look for neg drive V. Keep in mind the horz
out tube is probably damaged !
You can also pull the caps off the focus & HV tubes, & see if you
can pull a healthy arc from the flyback into the air.
FBT's & yokes will short most the time but ohm out OK.An anylist
with a ringer is the best test unless they are burning !
Look on scope probes for max DC rating.
73 Zeno
LFOD !